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The Endogeneity of Money: Empirical Evidence

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Abstract

For many years, the endogenous nature of the money supply has been a cornerstone of post-Keynesian economics. In this paper we survey the empirical work which has been done on both the ‘core’ thesis – that loans create deposits – and on peripheral questions such as the origin of the demand for loans, the reconciliation of the demand for money with the loan-created supply and the accommodationist/structuralist debate. The originality of the paper lies in its demonstration that while post-Keynesians may have thought they were fighting in heroic isolation, most economists involved with the real world of monetary policy-making in practice took much the same view. The consequence is that we can find empirical investigations of issues relating to the endogeneity in a wide range of locations.
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The Endogeneity of Money:
Empirical Evidence
Peter Howells
University of the West of England
For many years, the endogenous nature of the money supply has been a cornerstone of
post-Keynesian economics. In this paper we survey the empirical work which has
been done on both the ‘core’ thesis – that loans create deposits – and on peripheral
questions such as the origin of the demand for loans, the reconciliation of the demand
for money with the loan-created supply and the accommodationist/structuralist debate.
The originality of the paper lies in its demonstration that while post-Keynesians may
have thought they were fighting in heroic isolation, most economists involved with
the real world of monetary policy-making in practice took much the same view. The
consequence is that we can find empirical investigations of issues relating to the
endogeneity in a wide range of locations.
JEL codes: E50
peter.howells@uwe.ac.uk
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The Endogeneity of Money:
Empirical Evidence
Peter Howells
University of the West of England
1. INTRODUCTION
Any survey of empirical work on the endogeneity of money faces a fundamental
problem of where to draw the line. Take the easy case first. We could confine our
attention to works which select themselves because their author(s) present them as
such. Alternatively, we could use the fact that ‘Endogenous money theory is one of
the main cornerstones of Post Keynesian economics’ (Fontana, 2003 p.291)1 to select
on the basis of work which has been published in Post Keynesian, or otherwise
sympathetic, contexts. Either approach would draw the line in a broadly similar
position.
The problem with this approach is that monetary policy is inevitably
pragmatic. Policy must confront what is, even if macroeconomic textbooks continue
with the fiction that central banks target the money stock directly (exploiting a
mechanical relationship between bank reserves and deposits) and that monetary policy
‘shocks’ must always work through real-balance effects.2 By contrast, we know that
central banks set the rate of interest and allow reserves and deposits to be demand-
determined, because they have been telling us so for many years:
…in the real world banks extend credit, creating deposits in the process, and look
for the reserves later (Holmes, 1969, p.73).
And more recently:
1 It might be more accurate to say ‘Endogenous money (as understood in the sense of the next
sentence)…’, since Palley (2002) lists ten ways in which the term ‘endogeneity’ may be applied to the
money supply and argues that up to eight of these would be consistent with neoclassical treatments of
money.
2 Recent examples include Dornbusch, Fischer and Startz (2003), Mankiw (2003), Burda and Wyplosz
(2005). Less excusable is Mishkin (2004) which is offered to readers as a specialist guide to money and
banking. Reading these texts, one is reminded of Charles Goodhart’s denunciation of the base-
multiplier model of money supply determination as ‘…such an incomplete way of describing the
process of the determination of the stock of money that it amounts to misinstruction’ . Extraordinary as
it may seem, Goodhart wrote those words more than 20 years ago. (Goodhart, 1984, p.188).
3
In the United Kingdom, money is endogenous – the Bank supplies base money on
demand at its prevailing interest rate and broad money is created by the banking
system’ (King, 1994 p.264)3
The same message comes from the ‘new consensus view on monetary policy
and its recognition of Taylor-rules as a more accurate characterisation of how central
banks actually work than any focus on monetary aggregates. The consequence of this
is that much empirical work that takes place in central banks and other policy-focused
circles is, of necessity, exploring the empirics of endogenous money even if the
results are presented as part of mainstream economics with no reference to radical or
heterodox origins. Maybe our line should be drawn to encompass any work that
recognises that the central bank sets the rate of interest and all else is market-
determined. Inevitably, this enlarges the field considerably.
Finally, and closely-related to the pragmatism of policy research, we should
recognise that in the UK at least, even when monetary aggregates were of some
concern to policy-makers (roughly the period from 1968 to 1985, though with varying
degrees of enthusiasm), analysis of the money stock focused upon changes (rather
than stocks) and explained these changes through the ‘flow of funds identity’ whereby
the flow of new money (on the LHS) was ‘explained’ by its credit counterparts (on the
RHS). This is admitting at the very least that the quantity of money is best seen as
being determined by the supply of bank credit even if we need to look further for the
source of the demand for bank credit in order to clinch the argument that the new
money is endogenously-determined. On this view, we should be alert to the possibility
that what passes for some very mainstream empirical work in the 1980s, and even
earlier, was also in effect shedding some (unintentional) light on the second link in the
endogenous money chain: loans create deposits. Taking this approach draws the
boundary more widely.
For the purposes of this paper we take the ‘core’ of the endogeneity hypothesis
to comprise two causal links: loans depend upon economic activity (broadly defined)4
and those loans create deposits. In section 2, we concentrate on tests of the former and
in section 3 we look at the loan-deposit link. In both cases we draw the boundaries
3 At the time of their remarks, Alan Holmes was former NYFRB senior vice president while Mervyn
King was deputy governor of the Bank of England.
4 We return to the meaning of ‘economic activity’ later.
4
fairly widely. In section 4 we look at the empirical work which has been done on what
we shall call ‘secondary’ issues such as the accommodationist/structuralist debate, the
reconciliation of the demand for credit with the demand for money, and the link
between central bank rate and market interest rates. This arrangement has the
incidental effect that we are able to discuss the studies in broadly chronological order.
In section 5 we summarise and conclude.
2. THE DEMAND FOR BANK LOANS
Although the endogeneity of the money supply was recognised years ago5 and had
powerful supporters in the not so distant past (e.g. Kaldor 1970, 1982, 1985; Kaldor
and Trevithick, 1981; Davidson and Weintraub, 1973) it is Basil Moore who did most
to confront the monetarist revival of the 1980s. His book, Horizontalists and
Verticalists (1988) remains the most substantial theoretical and empirical treatise on
the subject, though not now, of course, without its critics.
In that book, Moore set out the core of the hypothesis as we know it, including
the assertion that the demand for credit has its origins in the production decisions of
firms. In chapter 9 this proposition is subject to empirical testing. The dependent
variable is the flow of new bank lending to US industrial and commercial companies
(ICCs) 1965(1)-1979(4). The estimation follows the same approach, but covers a
slightly different time period, as that used in earlier papers written jointly with
Andrew Threadgold. The most accessible was published in Economica in 1985 but
this had an antecedent in a Bank of England working paper (Moore and Threadgold,
1980). What is remarkable about all three is the theoretical basis which Moore gives
for the estimated model. ‘It stems from the recognition that the production process
takes time, so that production costs are normally incurred prior to the receipt of sales
proceeds.’ (Moore and Threadgold, 1985, p.67). Here we have an explicit test of the
hypothesis that the demand for loans (and ultimately the creation of deposits) depends
upon the ‘state of trade’ meaning in this case firms’ production plans. If anything
happens to increase firms operating costs – an increase in input prices, the decision to
increase output, a change in corporate tax rates, inter alia – then firms will require
more working capital and this will be met by an increase in bank loans.
5 e.g. Schumpeter (1911), Wicksell (1898).
5
Bearing in mind the different data sets, the results are remarkably similar in all
three cases. Using the preferred equation from the 1980 paper we have:
LDIt = 131.6 - 0.727Wt – 1.162IBt-1 – 0.472St – 0.932Tt – 475.4RT – 16.58r
where LDI is the quarterly flow of new bank lending to ICCs; W is the wage bill; IB
is the import bill; S is stock building (additions to inventories); T is ICCs’ tax bill; RT
is a variable to capture the effect of ‘round tripping’ - periods when ICCs could earn
more on deposit than the cost of borrowing, and r is the real own rate of interest on
loans. With the exception of the latter, all variables are in nominal terms. This
equation explained about 81 per cent of the flow of new lending to UK ICCs. For the
US the figure 75 was per cent (Moore, 1988 p.228).6
As a group, these studies appeared to establish what became, for some years at
least, two fundamental precepts of the Post Keynesian view of money supply
determination. The first is that it was prior changes in firms operating conditions (the
‘state of trade’) that was principally responsible for changes in the flow of new loans
(and therefore the rate of deposit creation). This had the effect of establishing firms’
demand for credit at the centre of the money supply process, a practice taken to even
greater extremes by the ‘circuitist’ approach to money and credit (see e.g. Graziani
1995). The second was that the interest-elasticity of the demand for credit was low.
The latter was important since it purported to show that the central bank’s ability to
control credit and money growth was extremely limited. The only instrument at its
disposal was a short-term nominal interest rate, and even where changes could be
made to have a predictable effect on the real rate, this made little difference to the
flow of new loans.
As we hinted in our introduction, however, it was not only economists with a
particular point to make about endogenous money who were anxious to explore the
behaviour of bank lending in the late 1970s. Recall the context. 1971 had seen the
introduction of the ‘Competition and Credit Control’ measures, a package which
swept away the long-standing use of administrative controls over money and credit
and promised, in future, that the Bank of England would rely solely upon changes in
minimum lending rate as its policy instrument. Subsequent events derailed these
6 There was also a study using South African data (see Moore and Smit, 1986) with broadly similar
results.
6
hopes and saw the interest instrument reinforced by the supplementary special deposit
scheme (the ‘corset’) intermittently from December 1973. Notice, however, that the
SSD scheme was designed in such a way as to penalise banks who allowed ‘excess’
growth in their interest bearing eligible liabilities (‘IBELS’) – roughly speaking their
interest-bearing deposits. The purpose of this was to discourage banks bidding for
deposits and thus to help drive a wedge between lending and deposit rates. This in
turn recognised the point (later publicised by Sprenkle and Miller (1981)) that the
demand for both money and credit depended, inter alia, on the spread between these
two rates. As the spread approaches zero the demand for money and credit tend to
infinity.
Later, in 1981, following an extensive review of monetary control
arrangements, the primacy of interest rates as the policy instrument was restated,
along with the mechanism whereby it was thought to influence money and credit
growth. A rise in rates increases the cost of borrowing and thus slows the rate of
deposit creation. If, at the same time, lending rates can be raised relative to deposit
rates then so much the better since there is then a secondary effect as agents switch
from money to non-money assets and lower the cost of non-bank credit relative to
bank loans.
In this environment, it is not surprising that policy makers, even from the most
orthodox background, would be interested in the demand for bank loans and the late-
70s and early-80s saw a flurry of studies, some of which approached the demand for
bank credit as a portfolio decision, rather like studies of the demand for money,7
wherein the decision to take out a bank loan was considered the equivalent of the
purchase of a negative asset, but others, as we see in a moment, certainly recognized
the importance of economic activity, in levels and changes.
In the UK, HM Treasury, the National Institute of Economic and Social
Research (NIESR) and the Bank of England all had well-developed models of the
demand for bank lending and their main characteristics were compared by
Cuthbertson and Foster (1982).8 The Bank of England model was essentially similar
7 Examples include Goldfeld (1966) and Jaffee (1971) who focus on utility maximisation within firms’
balance sheet constraints; Mélitz and Pardue (1973) and Mélitz (1975) who take a similar approach to
households.
8 Cuthbertson himself went on to develop a more general model of the demand for bank loans by ICCs
(Cuthbertson, 1985) in which the HMT and NIESR (but not the Bank of England) models were nested.
Later, with the help of J Slow (Cuthbertson and Slow, 1990), he estimated an error correction model
for bank advances to ICCs in which changes in the wage and import bill variables were correctly
7
to the model estimated by Moore and Threadgold (1980) and carried through Moore’s
subsequent work: the dependant variable was the flow of nominal lending to ICCs.
Firms’ costs were important and the there was a low elasticity on the real cost of
borrowing. By contrast, the HMT model was expressed wholly in real terms (except
the interest rate) and sought to explain the stock of bank loans while the NIESR model
focused, like the Bank of England, on flows but in real terms (but again with nominal
interest rates). Only the Bank of England refers explicitly to firms’ costs; the NIESR
model had the change in manufacturing output as its activity variable while the HMT
model had (the level of) real GDP. Given these differences, it is difficult to compare
the models, though if we are prepared to treat real GDP as a proxy for firms’ output
then all three find that the level or change in firms’ output is significant. The Bank
model, because it is estimated in nominal terms, in effect adds the cost of producing
that output as an important variable. The notable differences arise over interest rates,
though again direct comparison is difficult. As we have seen the Bank of
England/Moore approach gives the own real rate a very low elasticity. The NIESR
model differed by treating (nominal) interest rates as a spread (between the return on
assets and the cost of borrowing). The results suggested that in the short-run bank
lending was highly sensitive but from a policy point of view there was the problem of
uncertainty regarding the behaviour of the spread in response to a change in the
official rate. If, for example, the rate on assets changed more rapidly than banks
repriced their loans in response to an increase in the official rate, there would be the
perverse outcome that money and credit expanded. The HMT model, with a (single)
nominal rate on bank lending, also showed a negative elasticity, intermediate between
the NIESR and Bank of England/Moore and Threadgold equation.
In the 1985 paper Moore and Threadgold claimed that their study was taking
‘…quite a different approach…’ from this earlier work. The basis of the claim was
that they recognised explicitly the role of production and the time that it took, while
the earlier studies were backed by little theory and involved a rather ad hoc selection
of variables (Moore and Threadgold, 1985, p.67).9 There is some truth in that, but
even so it is clear that by the mid-1980s there was a well-established tradition of
explaining the demand for bank lending primarily by reference to the demand from
signed (i.e. as per Moore and Threadgold) but were insignificant. The interest rate charged on bank
loans and paid on short-dated assets were both significant.
9 The genuinely fundamental differences lie between the Moore/NIESR/HMT approach and the studies
referred to in footnote 7 above.
8
ICCs (rather than a broader range of agents) and that this tradition was accepted in
orthodox circles. Furthermore, while the HMT and NIESR approaches differed in
several details from that of Moore and Threadgold, these can be exaggerated. For
example, if we treat GDP and the volume of firms’ output as closely related, then it
was widely accepted that both the level and change in real bank lending was
significantly influenced by ICCs’ output plans. If we wanted to explain the behaviour
of nominal lending then it was legitimate also to consider firms’ costs (at least this
seemed to be proven for the flow of nominal lending) and thus to support the view that
changes in the money stock were traceable to firms production and costs. Any major
differences of opinion concerned the role of interest rates, and this was important
because of the emerging consensus that a short-term interest rate, set by the central
bank, was the only plausible policy instrument.
We turn now to more recent development of this specific theme – the origin of
loan demand – and look at work which is to some degree critical of the two
propositions which are commonly associated with the endogeneity hypothesis: that it
is firms production plans that are central to the demand for credit and that interest
rates have little impact on this demand. We start with the latter.
We have already seen that studies of the demand for credit which otherwise
had a number of features in common, differed over the role of interest rates.
Furthermore we have also seen that they formulated the interest variable in a variety
of different ways: in nominal terms in HMT/NIESR models and in real terms in
Moore/Threadgold. Furthermore, the NIESR model had a spread term while the other
approaches preferred a ‘simple’ own rate on the cost of borrowing. Before going
further, we should note not only the obvious – that the distinction between real and
nominal and the possible relevance of relative interest rates, opens up the possibility
of virtually unlimited formulations for empirical purposes – but also the fact that the
Post Keynesian literature on endogenous money has itself generated a good deal of
theoretical controversy on what interest rates are ‘relevant’, much of it associated with
the structuralist/accommodationist debate.10 But the picture is more complex even
than this. Not only can one advance different theoretical conceptions of the relevant
interest rate and then select from a wide range of different rates for empirical
purposes, but when it comes to real rates, judgements have to be made about how to
10 Examples include Palley (1991, 1994), Pollin (1991); Wray (1992); Hewitson (1995); Dow (1996);
Howells and Biefang-Frisancho Mariscal (2002); Fontana (2003). And there are others.
9
model inflation expectations and, in the UK especially, lending rates have also to be
‘estimated’ because of UK banks’ reluctance to divulge actual rates on grounds of
commercial sensitivity.
The difficulties this can cause was stressed by Hewitson (1997). In the
Moore/Threadgold studies the real rate of interest, was the real rate charged on bank
loans. This was constructed as the official rate set by the central bank plus a two per
cent mark-up, then adjusted for inflation expectations by using a proxy constructed by
the Bank of England. Both steps involve untested assumptions. In the case of the
mark-up, one might imagine that profit-maximising banks having difficulty in funding
the demand for loans would increase their lending rates and thus the mark-up. This of
course shows why interest rate behaviour is related to the
accommodationist/structuralist debate. If the central bank always ‘accommodates’
fully, why should banks have difficulty in funding new loans? But if one believes that
agents, including banks, experience different degrees of liquidity preference in
response to different conditions (Bibow, 1998; Dow and Dow, 1995; Dow, 1996;
Wray, 1995) then it is quite inappropriate to assume a constant mark-up.
On the empirical side, once again and for similar reasons, the relevant work
has been carried out within and beyond a Post Keynesian framework. We come back
to the point that if the only plausible instrument of policy is an official rate set by the
central bank, then the responsiveness of market rates to any change in the official rate
is of widespread and urgent interest. Thus studies at the Bank of England include Dale
(1993) and Dale and Haldane (1993). The ‘stickiness’ of market interest rates is also a
matter of wider public policy, bearing as it does on the degree of competition in the
banking sector and the price that people are paying for financial services and
products. This was the motivation behind Shelagh Heffernan’s two studies (1993 and
1997). Within a Post Keynesian framework, and explicitly concerned with the
demand for money and the demand for credit there is the evidence (for the UK) in
Biefang-Frisancho Mariscal and Howells (2002). What all of these studies show is
that there is considerable elasticity in the response of market rates to a change in the
official rate. First of all, we need to distinguish a short-run response from the ultimate
equilibrium position which may or may not leave relativities unchanged. Even if it
does, short-run disequilibrium may be quite sufficiently large and long-lasting to have
some effect on the demand for different types of credit. We noted above that it is
difficult to get explicit data on bank lending rates, especially to ICCs and therefore
10
tests of bank loan rate behaviour do not feature largely in the studies above. However,
there is much evidence that suggests a constant mark-up is at best a simplification.
For example, Heffernan (1997) shows that in response to a change in the official rate,
the adjustment in the cost of (bank) mortgage loans was only 37 per cent complete
after one month, while the adjustment of personal loan rates took much longer. In the
UK, we know that many bank loan rates are priced by a mark-up over LIBOR
(London Interbank Offer Rate) rather than the official rate itself, though we know
little about the mark-up. However, if LIBOR itself shows a varying relationship with
the official rate, then we know that assuming a constant mark-up of loan over official
rate is unsatisfactory. This was the thinking behind testing the LIBOR – treasury bill
rate(TBR) spread in Biefang-Frisancho Marsical and Howells (2002). Using monthly
data from 1986 to 2001 in an unrestricted VAR model they found a cointegrating
relationship between LIBOR and TBR. In the long-run, LIBOR is about 0.3 per cent
above the official rate. But adjustment of LIBOR to a change in the official rate takes
about two months, while adjustment of other (deposit and bond) rates takes much
longer. On this evidence, it’s clear that in recent years in the UK bank loan rates will
diverge from the official rate, every time there is a change, for a period of at least two
months. Furthermore, if we think that spreads are important, the change in spreads
will last rather longer.
The modelling of inflationary expectations, in Moore and Threadgold also
involves an untested assumption, namely that expectations are actually formed in the
way modelled by the Bank of England’s proxy. But more seriously, Hewitson argues,
the use of a real rate is anyway inappropriate. It is the cashflow arising from the
nominal rate which firms have to meet and if they expect inflation to be high or low,
they will expect the nominal value of their revenues to increase rapidly or slowly.
That said, one might still expect firms’ demand for credit to be inelastic with respect
to the nominal rate since firms face bankruptcy if they cannot meet their (nominal)
obligations.
Other criticisms identified by Hewitson included simultaneous equation bias
arising from the fact that the central bank’s setting of the rate is partly dependant on
the behaviour of variables in the loan demand function. Because of the CB’s reaction
function, the official interest rate ceases to be exogenous in the statistical sense.
Furthermore, estimating in first differences, as Moore and Threadgold had done,
meant that their results contained no useful information about long-run relationships.
11
Bearing these problems in mind, Hewitson set out to test the demand for credit
model using Australian data. The tests were carried out for each of four dependent
variables, some monthly and some biannual, ending in 1990, since there was no single
Australian series which corresponded exactly to the ICC series used in the UK
studies. To avoid the weaknesses in the Moore and Threadgold work, her approach
differed in two important respects: firstly the use of an error correction model in order
to avoid the spurious regression problem while establishing useful information about
long-run relationships; secondly, the use of a nominal interest rate actually charged on
bank lending as more appropriate and also as a means of avoiding the simultaneous
equation bias that would result by including the central bank’s official rate (+ fixed
mark-up).
The estimations were carried out for each of the four variables representing
firms’ demand for credit. The results, from a Moore and Threadgold point of view,
were disappointing. Sometimes the ECM was insignificant; sometimes the long-run
solution derived from the ECM differed from the cointegrating regression from which
the ECM was derived; some equations suffered from non-normality of the residuals
and, most conspicuously, the wage bill variable was generally insignificant while the
rate of interest sometimes was significant, sometimes not. Hewitson’s conclusion
listed a number of possible explanations for the results – and suggestions for further
testing – but the fact remained that her results were not supportive of the working
capital demand for loans and the low interest elasticity.
The fact that changes in ICCs working capital requirements may not provide a
very satisfactory explanation for variations in the flow of new bank loans does not, of
course, mean that they (and the resulting deposits) are not endogenously determined.
Endogeneity requires only that the flow of loans is dependent upon other variables
within the system. Instead of concentrating upon firms’ demand for working capital,
one might look at a broader based demand for credit. In this case the explanatory
variables might include nominal GDP or total final expenditure. A dramatic move
towards a broader-based analysis was offered by Howells and Hussein (1999) who
experimented with a measure of total transactions (i.e. including transactions in assets
and secondhand goods) as the driving force behind the demand for loans. This was
motivated by four factors. The first was a recognition that firms’ demand for credit
was a diminishing fraction of the total demand which was shifting increasingly
towards households. By 1997 60 per cent of total bank and building society lending in
12
the UK was going to households, compared with only 20 per cent to ICCs (and 20 per
cent to financial firms) (Bank of England, 1997).11 The second was the performance
of the monetary sector model developed by Arestis and Biefang-Frisancho Mariscal
(1995). This performed quite well when judged by conventional criteria and it was
notable for recognising three distinct sources of demand for credit: a household
demand for credit (excluding for house purchase), a household demand for mortgage
finance and a demand by ICCs. Interestingly, the ICC equation suggested that
stockbuilding was a highly significant variable while interest rates were insignificant
(broadly supportive of the Moore/Threadgold position). The household demands for
credit, however, were influenced by interest rates, specifically by a loan-deposit
spread. The model was clearly suggestive of a need to look at broader origins of credit
demand.
The third factor was the observation that while total transactions in the UK
had been a fairly stable multiple of GDP up to the mid 1970s, the former increased
dramatically during the 1980s. As a result, the ratio of transactions to GDP increased
from 1.9 in 1976 to 3.1 in 1989. This measure of transactions excluded large value,
same day payments between financial firms. Adding those in produces a rise from a
ratio of approx. 20 to 55 over the same period. (Howells and Biefang-Frisancho
Mariscal, 1992 p. 93). This possibility had been recognised by Keynes in the Treatise
(and from Fisher, 1911) both of whom recognised a distinction between ‘income’
(=GDP) transactions and other or ‘financial’ transactions (excluded from GDP). But
the distinction was largely forgotten as macroeconomics focused increasingly on
income velocity )alone). The significance was pinpointed by Keynes. While income
transactions might be closely related to GDP, transactions in secondhand (real or
financial) assets:
…need not be, and are not, governed by the volume of current output. The pace at
which a circle of financiers, speculators and investors hand round to one another
particular pieces of wealth, or title to such, which they are neither producing nor
consuming but merely exchanging, bears no definite relation to the rate of current
production. The volume of such transactions is subject to very wide and
incalculable fluctuations… (Keynes, 1971, V, p.42).
11 Arestis and Biefang-Frisancho Mariscal (1995, pp.545-6) date the ‘crossover’ in relative shares of
bank credit going to UK ICCs and households in 1983.
13
The final factor motivating an interest in total transactions was the notion that
the demand for money (and credit) should depend upon expenditure plans, in general,
and not just upon spending upon current output. Where the demand for money was
concerned, this was already getting some recognition. For example, Anderson (1993)
showed that the boom in mortgage refinancing in the USA had led to an increase in
the volume and volatility of financial transactions relative to GDP transactions, and
that this had measurable effects upon the demand for M1 deposits. More recently,
Palley (1995) and Pollin and Schaberg (1998) had demonstrated that money demand
estimates in the USA can be improved by recognising a role for total transactions
where the behaviour of the latter is proxied by measures which refer to some part of
the property market and to financial activity, two major categories of spending
included in total transactions but excluded from conventional measures of GDP.
Following this, Howells and Hussein (1997) showed that a total transactions series
itself gave better results than either GDP or wealth in an otherwise standard money
demand equation.
The first attempt to apply a similar reasoning to the demand for credit was in
Howells and Biefang-Frisancho Mariscal (1992). Although the paper was ostensibly
about the divergent behaviour of transactions and income velocieties, it contained the
argument that the demand for credit (and thus the resulting supply of deposits) was
heavily influenced by total transactions. It was easily shown that transactions velocity
had remained relatively constant. And with total transactions increasing in relation to
GDP, this was entirely consistent with the widely-observed fall in income velocity. It
was a rather oblique, or initial, formulation of the idea that loans (and deposits) might
be endogenously determined but that we should focus upon total, including
speculative and property, spending rather than firms’ costs of production.
The Howells and Hussein (1999) paper featured the comparative properties of
two estimations, one including GDP and the other including a measure of total
transactions as explanatory variables in equations with the flow of real bank lending
as the dependant variable. The RHS variables included also a variety of nominal
interest rates (on loans, deposits, bonds and on foreign currency) and an inflation
term. An ECM (following Banerjee, Hendry and Smith (1986) was estimated using
the general to specific procedure. The estimations were based on quarterly data
covering the period 1973(1)-1994(4). Changes in both, GDP and total transactions,
14
were significant at the one per cent level and both models passed the usual diagnostic
tests. However, the total transactions model was superior when it came to out of
sample forecasts, and when subjected to Akaike and Schwarz Bayesian selection
criteria. Interestingly, in the light of Moore and Threadgold’s earlier work, interest
rates (domestic, foreign, simple or as spreads) played no significant part. The present
state of knowledge does, therefore, seem to suggest that the flow of bank loans is
endogenously determined but it is to be explained by a very wide category of
spending (rather than by spending of any one group or any particular category of
goods and services). It does also seem as if changes in interest rates have rather
limited impact.
3. LOANS AND DEPOSITS
The second part of the endogeneity hypothesis, namely that the loans supplied in
response to the demand for bank credit create corresponding deposits, has attracted
less detailed investigation. No doubt this is because it is less controversial as a result
of the banks’ balance sheet identity. The starting point is the reognisition that banks’
assets are all, in some form or another, loans. They may be marketable – as
commercial or treasury bills – or non-marketable. Even deposits with the central bank
are loans (to the public sector). Given this identity, a change in bank loans must be
matched by a change in deposits and deposits are the dominant part of the money
stock. This is widely recognised in the so called flow of funds identity or ‘credit
counterparts’ approach to the analysis of changes in the money stock.
The flow of funds identity can be written with numerous variations but in its
simplest form it says:
...1
pg
DBL BL∆≡∆ +
The change in total bank deposits is the counterpart of changes in total bank lending,
i.e. to the non-bank public or to government. For a change in the total stock of money
we must add in any change in notes and coin held by the non-bank public and then we
can write:
...2
pgp
MBLBLC∆≡∆ +∆ +
Recalling that the government’s total borrowing needs (traditionally called the ‘public
sector borrowing requirement’) can be financed in various ways, we can see the
15
amount of finance provided by banks as a residual, providing whatever is required
after all other sources of borrowing have been exhausted. Thus:
...3
pp g
PSBR G C ext BL≡∆ +∆ −∆ +∆
In other words, the budget deficit, adjusted for sales and purchases of foreign
currency, must be financed by selling government debt, or by issuing notes and coin
or by borrowing from banks.
ADD 4
The FoF approach to the analysis of changes in the money stock has been
widespread practice for many years. (Maybe more in the Europe than the US, though
it formed the basis of IMF-Bank of England discussion about limiting domestic credit
expansion in 1967). Nevertheless, the fact that two sides of an identity must balance
is not of itself telling us anything about causality. Indeed, as Cuthbertson (1985b
pp.176-7) shows, it is not difficult to rearrange the terms in (3), recall that the
monetary base is cash held by the non-bank public plus bank lending to the
government in the form of (banks’) reserve assets, and then rewrite (2) so that a
change in the base appears on the RHS. In these circumstances, we are back to the
base-multiplier model (albeit written in first diofferences) which is the framework
normally adopted for the analysis of a money stock exogenously determined by the
reserve operations of the central bank.
As we shall see in a moment, making out a case that causality runs from loans
to deposits requires some empirical evidence. But it is worth pausing for a moment to
consider whether there is not something about the fact that analysis of monetary
changes is carried out through the FoF model which disposes researchers to be
sympathetic towards the idea of endogeneity. It is a question of the insights that we
get from arranging an identity in a particular way. For example, if we write out the
base-multiplier model in conventional form, the identity highlights (a) stocks (rather
than flows) and (b) suggests that these stocks are fixed unless the central bank decides
otherwise. In modern jargon, the ‘default’ setting in the model is a fixed money
supply. By contrast, the flow of funds model focuses on flows and encourages us to
think of positive flows as the ‘normal’ or ‘default’ case. This is undoubtedly more
realistic: central banks, even if they are concerned with monetary aggregates, do not
aim at a given stock of money. Their target is the rate of growth and if they do
16
nothing, in this model, the money supply will continue to expand. It is worth
considering that this ‘expansion as the norm’ makes the FoF model an obvious
framework for the analysis of an endogenously determined money stock.
Furthermore, the model is also very convenient for tracing the effects of the rate of
interest when used as the policy instrument. Its relevance to lending to the non-bank
public (BLp) is obvious and the return on government debt is also relevant to debt
sales (Gp). While the FoF equation may be just an identity with no behavioural
content, it is easy to see how conveniently it can be used to analyse issues surrounding
an endogenously determined money supply.
Attempts to establish causality empirically are, inevitably, limited to testing
for causality in the statistical sense and this is a good deal more limited than the sense
in which we normally use the term. In a statistical context, ‘causal’ means ‘containing
information that helps better predict a variable’ (Desai, 1981, p.402).12 In Moore’s
words, ‘What is really being tested is not “y does not cause x” but rather ‘an optimal
prediction of x does not depend upon y”.’ (Moore, 1988 p.151).
In Horizontalists and Verticalists Moore offered a range of Granger and Sims
causality tests on four different measures of (US) money, the monetary base and bank
loans. The data was monthly and covered, with some variations the period 1974 to
1980. In Moore’s own words:
The evidence presented strongly suggests that unidirectional causality runs from
bank lending to each of the four monetary aggregates. Each monetary aggregate
has been shown in turn to cause the monetary base unidirectionally. The single
exception is the feedback relationship found to exist between the monetary base
and M2. (Moore, 1988, pp.162-3. Emphasis added).
A broadly similar investigation by Thomas Palley (1994) albeit for a longer time
period, came to similar results.
In 1998 Howells and Hussein followed up both in a study which took
quarterly data from the G7 countries for periods which all ended in 1992 or 1993 and
began somewhere between 1957 and 1977. The study tested only for the relationship
between bank loans and broad money and drew on a number of developments in
12 See also Dow (1988) for a methodological discussion of concepts like ‘endogeneity’ and ‘causality’
when applied to the money supply.
17
econometric methodology after Moore’s 1988 work. For example, the Phillips-Perron
(1988) test was used to establish the degree of cointegration between the bank loan
and broad money series because of its advantage in allowing for serial correlation and
heteroscedasticity. Having established the degree of cointegration, Howells and
Hussein then estimated a vector error correction model in which the lagged
cointegrating residuals were entered as an explanatory variable and then tested for
causality.
The second link in the endogeneity was broadly confirmed across the G7:
broad money is ‘Granger-caused’ by loans whatever the reputation and rhetoric of the
central bank (Howells and Hussein, 1998 p.337). However, what the results also
showed was that there were signs of reverse causality (i.e. from deposits to loans) in
each of the G7, most convincingly for Germany and Japan. The presence of bi-
directional causality was interpreted by Howells and Hussein as providing some
evidence for the debate, which we take up in more detail in the next section, about the
relationship between the demand for credit and the demand for money. Put briefly at
this point, we can see the problem if we just look back at the FoF identity (4) above.
This says that the change in the quantity of money is identical to the sum of credit
flows. But money and credit are not the same thing and if we define money, as we do,
as a subset of financial assets held by he non-bank public, then (4) raises the question
of what has happened to the demand for money? (Not to mention the vast literature
devoted to its analysis). As Cuthbertson (1985) says: ‘There is an implicit demand for
money in the model [i.e. (4)] but only in equilibrium (p.173, emphasis in original). In
other words the FoF identity assumes an equilibrium but this raises the question of
what sort of mechanism ensures that the flow of new deposits, created by the motives
of those who wish to borrow more, will be just equal to the wealth that the mass of the
population just wants to hold as extra money balances? Again, briefly, Moore’s
position has always been that the willingness to hold the extra deposits (i.e. the
demand for money) is irrelevant in a world of endogenous money. Hence, evidence
from causality tests that there is feedback from deposits to loans, is evidence that the
demand for money does matter and is therefore evidence against Moore’s position.
Just as the Howells/Hussein results were being published, however, other
developments on the econometric front were ensuring that the issue would have to be
revisited. In 1997, Caporale and Pittis showed that omission of an important variable
can result in invalid inference about the causality structure of a bi-variate system
18
(such as that tested by Moore, 1988, 1989; Palley, 1994 and Howells and Hussein,
1998).13 However, searching for the role of a third variable by estimating a trivariate
vector autoregressive model also has its problems. In Caporale and Howells (2001)
the investigators followed the suggestion of Toda and Yamamoto (1995) whose
method involved augmenting the correct order of the VAR by the maximal order of
integration which characterises the series being used. If dmax represents the latter and k
is the correct order, then the (k+dmax)th-order VAR is estimated and tested in the usual
way.
The potential of this approach for exploring the question of causality in an
endogenous money context is considerable since it enables us to explore the first link
in the endogeneity chain at the same time as we investigate the second. In the present
case, for example, we might hypothesise that the omitted variable is the wage bill, or
import bill or GDP or, as Caporale and Howells (2001) did, the total transactions
variable that performed well in Howells and Hussein (1999). This enabled them to
investigate simultaneously the causal impact of total transactions on the flow of new
loans and the connection between new loans and new deposits. It also enabled them to
explore any direct link between transactions and deposits. The study focused solely on
the UK, using quarterly data from 1970 to 1998.
The findings confirmed again the loan deposit link but it also suggested
feed back from loans to deposits and, in their interpretation, some role for the demand
for money. The novelty in the findings, however, was that while transactions also
appeared to cause deposits directly, transactions did not appear to cause loans.
Although the methods are completely different ( a demand for loans equation against
causality tests) this latter finding must raise some doubt about the inference drawn in
Howells and Hussain (1999), namely, that changes in total spending plans drive
changes in bank loans.
So far as the second link in the endogeneity chain is concerned, therefore, the
present state of empirical knowledge appears to confirm the hypothesis that loans
cause deposits. The only controversial aspect of these findings concerns bi-directional
causality and the possibility of a feedback from deposits to loans. Howells and
Hussein (1998) found widespread evidence for this and it appears again in Caporale
and Howells (2001). As we noted above, its relevance to the endogeneity argument is
13 For an illustration, see Caporale et al (1998).
19
not that it threatens the core in anyway, but it relates to what we called in our
introduction, one of the secondary questions, namely the question of how the demand
for money and the demand for credit interact. It is time now to move on to this and
some other secondary issues.
3. REMAINING ISSUES
In this section we look at three more issues which have attracted a degree of empirical
investigation. Paramount amongst these, judged by the amount of attention given to it
must be the question of why the money supply is endogenous: the
accommodationist/structuralist debate.
Before we turn to that, however, we shall tidy up two loose ends by looking at
two issues on which we have already touched and which are interrelated, namely the
reconciliation of the demand for money with the demand for credit, and the behaviour
of market interest rates in response to central bank action.
In the last section we commented on the possibility that causality tests which
showed evidence of feedback from deposits to loans might be telling us that a change
in the quantity of deposits did not depend solely upon the flow of new loans but might
be constrained by the willingness of agents to hold the resulting deposits. This
‘reconciliation problem’ has a long history, though it has not always featured
explicitly in accounts of endogenous money. A recent survey of the problem, its
history and suggested solutions appears in Howells (2001, §5.8) but we need a brief
outline in order to understand better why the causality test evidence and evidence on
the behaviour of interest rates may be relevant.
The problem begins with the fact that the demand for bank loans emanates
from one set of agents with their own motives (for them it is an income-expenditure
decision) while the demand for money emanates from another set with different
motives (for them it is a portfolio decision). Granted, the two groups partially overlap
but they are not identical. So long as this distinction exists, then there must be a
question of how the flow of new deposits, created by a subset of agents with income-
expenditure deficits, is to be matched with the population’s desire to arrange their
wealth in such a way that they are willing to hold the additional money. And hold it
they must (a) in order to satisfy the banks’ balance sheet identity in which loans equal
deposits and (b) because money is defined exclusively as deposits held by the non-
20
bank private sector – in Dennis Robertson’s memorable phrase, ‘All money which is
anywhere, must be somewhere’ (Robertson, 1963, p.350).
The possibility that the endogenous production of deposits could differ (ex
ante) from the demand for them had been raised in 1986 [1992] by Victoria Chick. In
what she described as ‘stage 2 banking’ it becomes possible for investment to precede
saving because firms can borrow from banks whose loans create the new deposits
with which to finance the new investment. Chick’s immediate concern is how exactly
to describe the extra deposits as a form of saving. But the reference to the demand for
them is obvious.
…though the deposits are willingly held there is no actual decision to save.
The deposits represent a passive (and grateful) acceptance of means of
payment by workers and traders. Some of it will doubtless be used for
consumption, some of it saved… [However] while individuals quite happily
accepted claims on deposits – acceptability after all is the hallmark of the
means of payment – the point on which I wish to insist is that no one actually
asks those who subsequently have larger deposits whether the expansion of
bank balance sheets was alright with them. (Chick, 1986 [1992] p.200)
But Chick’s target in 1986 was the earlier paper by Kaldor and Trevithick
(1981). This had ruled out any problem in connection with the demand for
endogenous money on the grounds that there would be an automatic application of
excess receipts of money to the repayment of overdrafts. Thus, the individual actions of
borrowers taking out new loans (or extending existing ones) could threaten an ‘excess’
creation of deposits ex ante, but the moment ‘excess’ deposits were recognised they
would be devoted by their holders to repaying existing debt. Thus limiting the deposit-
creating process – ex post – to only those deposits which people were willing to hold.
Note that ‘automatically’ is the keyword. It is a reasonable assumption that those
with overdrafts who have receipts in excess of payments will use the excess to reduce
their debt and this will (`automatically') reduce the quantity of new deposits that are
actually created. The problem is - not everyone has an overdraft. And it is not sufficient
to argue that some people somewhere (eg virtually all firms) do have overdrafts. Once it
is accepted that the first round recipients of ‘new’ money may not wish to hold it, then
the problems begin. Some process must be triggered by agents as they seek to adjust.
21
The same issue surfaced in the debate between Charles Goodhart (1989, 1991)
and Basil Moore (1991) a few years later and again between Howells (1995, 1997) and
Moore (1997). Moore’s position throughout these exchanges is essentially that an
equilibrium demand for money makes no sense in a world of endogenous money. In
Moore (1991) this was argued on the grounds that if money exists then there must be
uncertainty and if there is uncertainty then ‘general equilibrium’ is impossible. This is
reinforced by the nature of money which means that it is always accepted as a means of
payment. This, argued Moore, shows that there is a permanent and limitless ‘demand’
for money. Agents treat it like a windfall and require no inducements to hold whatever
quantity may become available.
However, as Goodhart (1991) points out whatever reservations one may have
about general equilibrium this does not entitle one to deny that people have preferences
which they will seek to achieve – in this case by swapping money for other assets. And,
as Howells (1997) argues, treating ‘acceptability in exchange’ as equivalent to a
‘demand for money’ is to distort the meaning of the latter rather dramatically.
Two areas of empirical work have some bearing on this issue. The first, as we
have seen, involves causality tests. If, as seems to be the case, there is some evidence
that causality runs from deposits to loans as well as from loans to deposits, then it is hard
not to interpret this as some sort of evidence that the demand for money plays a role in
the ability of the banking system to create deposits by its response to loan demand. As
we saw in the last section, the balance of evidence from causality tests does suggest that
the demand for money is relevant.
The second, which we have also touched on, involves the behaviour of interest
rates. And this is relevant for two reasons. Firstly, if we accept that there is something in
the reconciliation problem, in other words that deposit holders may find their deposits
growing more rapidly (or more slowly) than they planned and that they will respond to
this by some sort of portfolio reorganisation, then this is bound to affect relative interest
rates. Take as an example an ‘excess’ rate of deposit expansion. According to Goodhart
(and Howells) agents will periodically exchange their excess deposits for other assets.
The price of these assets will rise and their yields will fall. If, for convenience, we talk of
‘bonds’ as the alternative to money then bond rates will fall relative to money’s own rate
and also relative to the rate charged on bank loans.
The behaviour of interest rates is relevant also because we recall that the core of
the endogeneity thesis involves the proposition that central banks set the rate of interest
22
and thereafter the quantity of loans (and deposits) is demand determined. Furthermore,
central banks are perfectly open in their recognition of an official short-term interest rate
as the only feasible instrument of monetary policy. A rise, for example, in the official
rate should, it is hoped, reduce the rate of expansion of loans and deposits. But we know
from section 2 of this paper that there is considerable debate over the elasticity of the
demand for bank loans with respect to the rate of interest and at least some evidence that
this may be rather low. In other words, in a conventional diagram, the demand for bank
loans is steeply-sloped and a large change in interest rates causes little movement along
the quantity axis. But if we think again about relative interest rates, as some of the
studies in section 2 do, we can see why the situation may not be so bleak. Look again at
the imaginary sequence in the paragraph above; switching between money and bonds
causes relative interest rates to change. Now consider the case where the central bank
raises the official rate and most interest rates follow roughly in step (quickly at the short
end, less directly and more slowly at the long). Suppose now that money’s own rate is
sticky. We now have a situation where all rates have risen relative to money’s own rate.
This has widened the bond-deposit spread and agents switch from money to bonds,
putting a brake on the rise in bond yields. If loan rates adjust by the amount of the
official rate change, then (unrestrained) loan rates rise relative to the (moderated) bond
rates and another differential widens. Since the issue of bonds is a partial substitute for
bank loans and bonds now offer a (relatively) cheaper form of finance, our steep loan
demand curve shifts inward and the effectiveness of the official rate change is enhanced.
This mechanis and the role of relative interest rates more generally, is discussed in more
detail in Arestis and Biefang-Frosancho Mariscal (1995) pp.550-53.
Thus any approach to endogenous money must take interest rates seriously –
pertly by virtue of the reconciliation problem, partly because it is central to policy
decisions in an endogenous money regime. What happens to relative rates is an
empirical question. As early as 1984, Goodhart expressed some scepticism about the
authorities’ ability to engineer the sort of relative rate changes we have just outlined14 as
he witnessed the effects of liability management leading to competitive (and ‘unsticky’)
deposit rates. This is broadly confirmed in the paper by Howells and Biefang-Frisancho
14 `It is not that the demand for lending has become less sensitive to changes in relative interest rates. If
anything, it has become more so. The problem lies in the increasing inability of the authorities to cause
changes in relative rates by changing the level of absolute rates.' (Goodhart, 1984).
23
Mariscal (2001) but all of the interest studies referred to in section 2 above15 should be
read for the light that they shed on the very complex question of relative interest rates
and not just for what they tell us about bank mark-ups.
Finally, we need to consider the evidence that has emerged in the course of the
acommodationist/structuralist debate, or as it is sometimes caricatured, the question of
whether there is a horizontal money supply curve. An altogether more useful way of
trying to capture the importance of this debate is to say that it is addressing the question
of why the money supply is endogenous. Is it endogenous because, as the
accommodationists (e.g. Kaldor, 1970; Moore, 1988; Lavoie, 1992; Rochon, 1999) hold,
the central bank willingly makes available any quantity of additional reserves required
by banks to validate their lending? Or is it endogenous because, as the structuralists (e.g.
Arestis, 1997; Chick, 1983; Dow, 1997; Pollin, 1991; Sawyer, 1996; Wray, 1990) would
have it, banks own innovative behaviour enables them either to ‘create’ reserves or to
economise on them in such a way that their lending is largely free of any central bank
constraint. Fontana (2003) is one of many good summaries of the debate and suggests a
diagrammatic representation of the two positions.
We shall see in a moment that some of the ground that we have already covered
can be made to bear indirectly on this debate. But the most direct test of these two
postions was carried out a few years ago by Pollin (1991). Recall that the
accommodationist position assumes that the central bank will always make available the
quantity of reserves required by banks in order to support their lending. This may be for
political reasons – a desire not to see interest rates rise – or precautionary reasons – a
desire to avoid the risk of a banking collapse. If this were the case, Pollin argued, we
would expect to see a stable (‘stationary’) relationship between the volume of bank loans
and the volume of reserves. On checking this ratio, for the USA, over six NBER cycles
from 1953 to 1988, Polin found that the mean increased over time and quite rapidly in
later periods. From this, and the behaviour of variances, Pollin drew the conclusion that
this favoured the structuralist case – banks appeared to have found ways of increasing
their lending per unit of reserves, as if they were reserve constrained.
Another test was suggested by the mechanism encouraging banks to innovate on
the reserves front, namely the tendency for market interest rates to rise (relative to the
official rate) as the reserve shortage took hold and then to fall as successful innovation
15 Se p.8 of this typescript.
24
eased the shortage. In the presence of structural endogeneity, therefore, interest rate
determination is not a one-way causal process running from the central bank to market
rates: on the contrary, there will be evidence of bi-directional causality. Using Granger-
Sims causality tests and looking at 240 observations on a range of interest rates between
1968 and 1988, Pollin found evidence that two-way causality increased with term. Long
term rates showed signs of a complex interaction with federal funds rate, while short-
term rates appeared to be more directly and unidirectionally ‘caused’ by federal funds
rate. As we said at the beginning of this discussion, the earlier evidence that we reported
on the behaviour of UK interest rate relativities, is not inconsistent with these findings,
though the UK tests were not done for this purpose and were not conducted within a
causality framework.
Although these tests appear to lend considerable support to the structuralist
position, they have not proved definitive. Taking the loan/reserves ratio, for example,
one might argue (see Palley, 2001) that one would expect an increase over time since
banks are profit-seeking institutions and reserves act as a tax on bank outputs. Thus
banks have a continuing incentive to economise on reserves, whatever may be the
position of the central bank and one might imagine that they become more effective in
this as innovations take place.
There is also a problem in the interpretation of the apparent two-way causality
between the Fed and market interest rates. Recall that the bi-directional causality appears
for longer rather than very short rates. How we interpret this should be qualified by how
we think the terms structure of interest rates is determined. Assume that expectations
play some role, i.e. that current long rates embody some expectation of what future short
rates will be. In these circumstances, causality tests of the Granger/Sims types will show
that the future Fed rate is better explained by including a current long rate than without
it.
In more recent years the structuralist/accommodationist debate has become
closely entwined with discussions about the role of liquidity preference, on the part of
both banks and the general public. The connection lies in the fact that if banks are likely
to experience different needs for liquidity depending upon the state of the economy, the
level of perceived risk and so, then all sorts of ratios, not just the loan/deposit ratio, will
be subject to adjustment and banks will ave to find ways of making these adjustments
independent of central bank action. Hence, much of the work that we referred to earlier
25
(e.g. on the role of the demand for money) has been called upon to support the
structuralist cause (see Fontana, 2003, p.297).
4. CONCLUSION
So, after all this effort, what do we know? Firstly, the money supply is endogenous.
Leaving aside the writers of macroeconomic textbooks, no one doubts this. Central bank
governors tell us it is so and we can see for ourselves that central banks set a rate of
interest as the sole instrument of policy, usually amidst a great deal of media attention,
and all else is market-determined. There is no point in debating this any more.
But questions of detail remain. Firstly, for example, the question of where
precisely within the economic system the demand for loans originates. Traditionally in
Post Keynesian economics, and more recently in circuitist theory, the emphasis has been
upon firms’ working capital needs. This seems misplaced in the light of the evidence (a)
that household demand for bank credit is now (in the USA and UK at least) much larger
than firms’ borrowing requirements and (b) that estimates of firms’ loan demand which
focuses narrowly upon the wage, import and tax bills do not perform well. Better results
are obtained, even for firms’ demand for credit, by including a wider measure of
economic activity such as GDP and good estimates of the total demand for credit
(including households) can be obtained by recognising that the demand for loans
originates with the widest variety of spending plans including those involving
secondhand assets. None of this undermines the central hypothesis: the demand for loans
originates within the economic system.
Secondly, loans do create deposits. There is ample causality evidence for this.
The issue that remains open for further investigation is the significance of the two-way
causality. We have seen that this may be some evidence that the demand for money, as
well as the demand for loans, plays some part in the money creation process and this
would then give some support to the view that we have to think about how the demand
for money and the demand for loans are reconciled. One obvious mechanism is largely
through portfolio adjustment and (we have seen) this would be supported by what we
have also established about changes in interest rates following a change in the central
bank’s official rate.
Finally, we can still discuss and investigate the role of the central bank in
connection with the supply of reserves. Direct tests of hypotheses associated with the
accommodationist and structuralist positions are inconclusive, but could be refined. At
26
the moment, the structuralist position maybe looks the stronger by virtue of its appeal to
evidence about liquidity preference which indirectly lends it some support. But the case
is far from closed. It clearly is the case, widely chronicled in the financial press, that
central banks go to great lengths to prevent day by day reserve shortages.
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... This way both the credits demanded and monetary base will determine the money supply. As per the view central bank will have some power over the amount of reserves in the system, whereas the interest rate will endogenously be determined in the markets (Howells 1995, Wray 1990. ...
... The following generation of work encounters for the long term investments, other expenses of firms etc. as the major factors leading to a rise in credits as in Arestis (1987Arestis ( /1988), Arestis and Mariscal (1995), Howells (1999), Howells and Hussein (1998). Howells and Hussein (1998) have detected endogeneity for G-7 by applying Johansen cointegration and Granger causality tests for the 1957-1993 period. ...
... The money supply curve is thus horizontal, as the suppliers of money always fully accommodate the demand for money at a given interest rate. Meanwhile, the structuralists argue that money is endogenous, because-thanks to innovative techniques of management of assets and liabilities-commercial banks can lend largely free of any central bank constraint ( Howells, 2005 ). Hence, although monetary policy is effective in the short run, it is "outwitted and subverted by the banking system in the longer term" ( Chick and Dow, 2002 , 588). ...
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Whether money is exogenous or endogenous is the subject of one of the most important and intriguing debates in monetary economics. The aim of this article is to contribute to this longstanding debate through detailed examination of different notions of endogeneity and exogeneity of money. I argue that the debate has been too simplified. In reality, money can be either endogenous or exogenous, depending on several factors. Not only has the debate prompted some economists to draw too far-reaching conclusions, but it also misses the point.
... These pioneering works are based on Granger causality test and applied for USA and UK capitals to bank credits to prove the existence of a relationship and hence supporting the endogenous money hypothesis are criticized in various aspects. It is argued that the explanatory power of working capital of entities to illuminate the endogenous money is weak (Arestis and Mariscal 1995, Hewitson 1997, Howells and Hussein 1999, Howells 2006). The changes in the bank credits not only depend on demand for working capital of commercial and industrial companies but also the demands of households and all other decision making units in the economy. ...
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... For instance, debates about the appropriate role of central banks within the process of endogenous money creation pins 'structuralists' and 'accomodationists / horizontalists' against each other. Moreover, the 'reconciliation problem' (Howells, 2006) concerns the relation between credit and money, interest-bearing and non-interest-bearing or inside money and outside money. Moore (2006) holds that the above abstract distinctions do not enhance our understanding of what in reality is a complex adaptive system. ...
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Thesis
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Chapter
PKE monetary and financial theory has essentially developed around the theme of the endogeneity of money, which is seen as depending minimally on three types of behaviour. These are the behaviour of the central bank, the lending behaviour of the commercial banks, and the borrowing behaviour of the non-bank private sector. Under a fixed exchange rate regime we should also include the overseas sector. As regards domestic sources of endogeneity, the standard argument in PKE is that the central bank, as lender of last resort, has no realistic alternative but to satisfy the needs of trade at the discount rate that it fixes (see for example, Kaldor, 1980; Moore, 1988). Commercial banks then provide credit at the discount rate fixed by the central bank plus a mark-up. The demand for bank lending is interest inelastic. This is the standard argument in some, if not in most, PKE monetary and financial theory.
Chapter
In this chapter, we begin with a consideration of the views of Kalecki on the nature of money, specifically that in conditions of developed capitalism money is predominantly credit money created by the banking system. This leads into consideration of the way in which the banking system and the expansion of the money supply is an important ingredient in any expansion of the economy. Specifically, there is a need to consider the financing requirements of an expansion of investment demand. The interaction of the demand for money by the public and the banks’ willingness to supply money are seen as determining short-term interest rates, with long-term interest rates based on the expectations on future short-term interest rates. The final section of the chapter deals with the restrictions placed on the expansion of any single firm by the finance capital market.