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Cross-country evidence on the link between IQ and financial development

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Abstract

Research finds that individuals with higher levels of intelligence are likely to save relatively more than others. Evidence from macro-level studies shows that countries with higher than average IQs also are characterized by greater levels of saving. These two outcomes suggest the testable hypothesis: Do countries with higher national average IQs, on average, have more developed financial markets to accommodate this increased savings activity? Using three popular measures of financial development and the Lynn-Vanhanen national IQ measure, I test that hypothesis for a large sample of countries. The evidence indicates that, all else the same, IQ is a significant predictor of financial development.

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... In other words, countries with higher national IQ within the population have higher saving rates and tend to possess more financial assets. If IQ positively correlates with savings, it can be argued that a higher IQ can improve financial development and economic growth (Hafer, 2016). The study highlights that human intelligence plays an integral role in justifying various socio-economic outcomes in modern society. ...
... The study highlights that human intelligence plays an integral role in justifying various socio-economic outcomes in modern society. Therefore, countries that aim to optimize economic growth should invest in policies that improve IQ, such as comprehensive education and improved healthcare (Hafer, 2016). Such approaches can improve the financial behaviors of the citizens, thereby enhancing the economic wellbeing of the overall society. ...
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... Higher national IQ is associated with better overall health, higher levels of democratization, and less corruption, among others. Recent evidence also shows that IQ is positively associated with greater entrepreneurial activity ( Hafer & Jones, 2015), good governance ( Rindermann, Kodila-Tedika, & Christainsen, 2015), and financial development ( Hafer, 2016). Researchers also have found that IQ and happiness are related, though the relationship seems more complicated. ...
... Theoretically ( Coase, 1960;North, 1990) and empirically ( Norton, 1998;Beck & Levine, 2005;Jones & Schneider, 2006;and Rode & Coll, 2012), differences in property rights and rule-of-law have been shown to help explain differences in economic growth across countries. This reflects several channels of influence, such as how institutional arrangements and contract law effect entrepreneurial activity ( Hafer & Jones, 2015) and the development and functioning of financial markets ( Levine, Loayza, & Beck, 2000;Hafer, 2016). For this study we use the 1985 value of the "Legal System and Property Rights" sub-index from the Economic Freedom of the World Index ( Gwartney, Lawson, & Hall, 2012). ...
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Previous research has found that there is a statistically significant, positive link between country-level IQ and various measures of aggregate production, such as GDP. This study extends that analysis by estimating the relationship between IQ and a new measure of economic welfare. Developed by Jones and Klenow (2016), welfare is not a measure of spending on public assistance programs, but a theory-based empirical construct combining several metrics of economic well-being. Using this new economic welfare index for a large sample of countries (74), we find that IQ is a statistically significant (5% or better) and economically important predictor of welfare growth. A one-point increase in IQ is associated with a 4% increase in welfare growth for the average country. Our results support the view that national IQ is an important determinant of cross-country differences in economic activity and welfare.
... To measure financial development, this study used a proxy already used in the studies by Rousseau & Watchel (2011) and King & Livine (1993), where credit to the private sector was used as a proxy for financial development. Credit to the private sector is private credit that symbolizes the level of financial intermediaries and is the best measure of financial development (Hafer, 2016). This study also uses variables based on the study of Rousseau & Watchel (2011) and King & Livine (1993), i.e. variables such as inflation, trade openness and unemployment. ...
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... In terms of measurement, the existing studies used traditional proxies of FD (the ratio private credit to GDP and the ratio stock market capitalization to GDP) (e.g., Chen et al. (2019a), Asimakopoulos et al. (2019), Nawaz et al. (2019)). Among other measures, one can mentioned Zhang et al. (2015), for instance, who used the total loans, the credit to private ratio and the credit to public ratio in China, Hafer (2016) used the private credit and bank assets; Ibrahim and Alagidede (2018) proxied FD through the private and domestic credit in 46 African countries while Pan et al. (2019) similarly used private credit in Bangladesh, and Maskus et al. (2019), Ji and Zhang (2019), Chiu and Lee (2019) also mobilized private credit and stock market capitalization for their study. Other works used alternative indicators such as the money supply as M1 and M2 (Cavalcante et al., 2018) or M3 (Ohlan, 2017); the bank Zscore, return on assets of bank; the nonperforming loans (Ashraf, 2018); the level of stocks traded (Yang, 2019); the bank deposit (Chen et al., 2019b) or the deposit of M3 (Gaies et al., 2019). ...
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Applying panel fully modified OLS for a global sample of 88 economies over two decades, this study investigates how the growth affects financial development and human capital accumulation in the long-run. The human capital accumulation has a significant positive impact on the output in our full sample and the LMEs, while it appears to have a significant negative impact for the HIEs. The financial development is found to have a significant positive impact. This article investigates the long term effects of FD and human capital on economic development. Our empirical results highlight the positive impacts of financial development (in general) on economic development. Generally speaking, human capital seems to have a long-run positive influence - the results from dynamic fixed effects autoregressive distributed lag (DFE ARDL) show that the positive impact of human capital is consistent in the long-run, but not really statistically significant in the short run. Financial markets mostly have short-run positive impact and financial institutions have a long-run positive impact on the GDP. Finally, the association between the financial development and human capital in the LMEs shows a significant positive impact for all indicators. These results imply a stronger impacts of the FD in case of the LMEs (or lower level of human capital).
... Recently, Phuc Canh and Trung Thong (2020) confirm long-run mutual relationships between natural resources rents and financial development in a sample of 86 economies from 2002 to 2017. Hafer (2016) suggests that average intelligence level of a country has a linkage with financial development since individuals with higher levels of intelligence might save more. Mlachila and Ouedraogo (2019) add that shocks in commodity prices can alter the development of financial system in commodity-rich countries. ...
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... Financial acumen is an amorphous term. It is sometimes referred to as financial intelligence [43] or financial literacy [44]. ...
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Banknotes and coins are some of the most frequently traded items in the world. Their current use, however, is unsustainable, and many countries are trying to digitalize their payment systems. The recent pandemic has accelerated this transition. Building on the Theory of Unintended Consequences, the aim of this article is to examine the influence of some pandemic-specific factors (in specific, hand sanitization, conspiracy theory mentality, and financial acumen) on the current and prospective use of e-payment. A particular aim of the study is to analyze these relationships in Serbia (as an example of a cash-centric society). The study is based on primary data gathered via a questionnaire. The questionnaire was designed for the purpose of this study. In total, the study examined N = 474 examinees. The results of this study confirm that the pandemic-induced variables are statistically significant predictors of e-payment use. In particular, hand sanitization, conspiracy mentality (reversely), and financial acumen positively affect current and prospective e-payment use.
... The inherent characteristics of this operation involve uncertainty (Gil-Lafuente, 2005), as much of its component elements rely on the availability of complete information and the efficiency of the market (Fama, 1998). The application of economic principles to decision-making (Blanco-Mesa, 2020), hence financial activities (Fabozzi and Drake, 2009), has drawn much attention from several fields of knowledge such as engineering (Xu et al., 2018), mathematics (Grech, 2016), statistics and probability (Bouchard and Nutz, 2015;Doucet et al., 2015) and psychology (Duclos, 2015;Hafer, 2016). ...
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... The studies like Ahmed 4 and Ng et al. 5 proposes some traditional drivers for financial development such as inflation, government costs, education level of the people, and so forth. Furthermore, gender, IQ of the people, and export rate also have been introduced as some recent drivers of financial development by Hafer, 6 Zins and Weill, 7 and Mlachila and Ouedraogo. 8 The study of Niroomand et al. 9 proposes a simple mathematical programming model for countries' credit ranking problem using some financial development based indicators. ...
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... National IQ data was extracted from the book Intelligence: A Unifying Construct for the Social Sciences (Lynn & Vanhanen, 2012). Although Lynn's datasets have been subjected to criticism, scholarly opinion has generally changed from negative to positive and many independent research teams now use them (Dutton, van der Linden & Madison, 2019;Grigoriev & Lapteva, 2018;Hafer, 2016;León, 2018;Lv & Xu, 2016;Minkov, Welzel & Bond, 2016;Nikolaev & Salahodjaev, 2016;Rindermann & Becker, 2018;Thies, 2019). More importantly, a recent recalculation of the national IQs from the original sources by David Becker has validated the original calculations. ...
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Patient people fare better in life than impatient people. Based on this and on economic models, many economists have claimed that more patient countries should fare better than less patient countries. We utilize cross-national data in non-cognitive traits measured in the Global Preference Survey (GPS). This survey measured six non-cognitive traits — risk and time preferences, positive and negative reciprocity, altruism, and trust — across 76 countries in about 80,000 persons. As such, it provides the best current database of economics-focused non-cognitive traits. We combine this database with existing estimates of national intelligence (national IQs) and model country outcomes as a function of these predictors. For outcomes, we used the 51 national well-being indicators from the Social Progress Index (SPI) as well as the composite extracted from this, the general socioeconomic factor. We find that non-cognitive variables, time preference included, are only weakly predictive of national well-being outcomes when national IQs are also in the model. The median β across the indicators was 0.11 for time preference but 0.39 for national IQ. We replicated these results using six economic indicators, again with similar results: median βs of 0.15 and 0.52 for time preference and national IQ, respectively. Across all our results, we found that national IQ has 2-4 times the predictive validity of time preference. These results are fairly robust to inclusion of a spatial autocorrelation control, alternative measures of national IQ and time preference, or no controls. Our results suggest that the importance of national non-cognitive traits, including time preference, is overestimated or that these traits are mismeasured.
... 70-72, p. 74;Nyborg & Jensen, 2001;Schmidt & Hunter, 2004;Schmidt, Hunter, Outerbridge & Goff, 1988;Zagorsky, 2007;Zax & Rees, 2002). Hence, as achievement after achievement is attained nationwide, one can definitely expect higher levels of gross domestic product (GDP) per capita (Jones, 2013;Jones & Schneider, 2010;Lynn & Vanhanen, 2002, financial development (Hafer, 2016;Kodila-Tedika & Asongu, 2015), economic (GDP per capita) growth rate (Hanushek & Kimko, 2000;Jones & Schneider, 2006;Ram, 2007;Weede & Kämpf, 2002) and technological progress (Davies, 1996;Gelade, 2008;Jones, 2012a;Lynn, 2012), especially when compared to countries with lower IQ levels. ...
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This article arises from two related research programs. One examines the relationship between financial development and economic growth. The basic conclusion from this work is that countries that experience greater financial development also experience faster rates of economic growth and higher levels of income per capita (King and Levine 1993a, 1993b; Levine and Zervos 1998; Rousseau and Wachtel 1998; Levine et al. 2000; and Levine 2003). Under this umbrella also are studies that test for the role of property rights and regulation on financial development. Shehzad and De Haan (2008) find that financial liberalization — a reduction in regulations — reduces the probability of a banking crisis and, therefore, promotes economic growth. Baier et al. (2012) find that countries with relatively low levels of regulation — more economic freedom — are less likely to experience a financial crisis in the near future (five years out) than countries with more regulation. Like De Haan et al. (2009), Baier et al. find that in the period immediately following a crisis there generally is a diminution of economic freedom that stems from increased regulation, portending slower economic growth in the future.The other line of research investigates the institutional sources of economic growth. In addition to physical and human capital, researchers have considered a number of institutional factors as diverse as colonial background and religious preferences (overviews can be found in Sala-i-Martin 2002, Barro and Sala-i-Martin 2004, and Loayza and Soto 2002). A number of studies also have employed indexes of economic freedom to proxy for the socio-economic institutions that may affect economic growth. The weight of evidence from this work suggests that countries with higher levels of economic freedom experience faster economic growth (Gwartney et al. 2006, Weede and Kampf 2002, Weede 2006).The question addressed in this article is whether greater economic freedom leads to a higher level of financial development. While there is evidence that more economic freedom is associated with improvements in credit allocation at the micro level (Hartarska and Nadolnyak 2007, Crabb 2008, Enowbi-Batuo and Kupukile 2009) and to better sovereign credit ratings (Roychoudhury and Lawson 2010), there does not appear to be any study that explicitly tests for the link between economic freedom and financial development.
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We examine the correlations between the national IQs of Lynn and Vanhanen (Lynn, R. and Vanhanen, T. (2002). IQ and the wealth of nations. Westport, CT: Praeger. Westport, CT: Praeger, Lynn, R. and Vanhanen, T. (2006). IQ and global inequality. Athens, GA: Washington Summit Books.) and educational attainment scores in math and science for 10- and 14-year olds in 25 countries and 46 countries (respectively) given in the TIMSS 2003 reports. It was found that national IQs had (attenuation corrected) correlations of between 0.92 and 1.00 with scores in math and science. The results are interpreted as a validation of the national IQs. They suggest that national differences in educational attainment may be attributable to differences in IQ, or alternatively that national IQs and in educational attainment are both indicators of the mental ability of national populations. It is also shown that national IQs are positively associated with national per capita income (r = .61). It is proposed that these have a reciprocal positive feedback relationship such that each augments the other.
Article
International cognitive ability and achievement comparisons stem from different research traditions. But analyses at the interindividual data level show that they share a common positive manifold. Correlations of national ability means are even higher to very high (within student assessment studies, r = .60–.98; between different student assessment studies [PISA-sum with TIMSS-sum] r = .82–.83; student assessment sum with intelligence tests, r = .85–.86). Results of factor analyses indicate a strong g-factor of differences between nations (variance explained by the first unrotated factor: 94–95%). Causes of the high correlations are seen in the similarities of tests within studies, in the similarities of the cognitive demands for tasks from different tests, and in the common developmental factors at the individual and national levels including known environmental and unknown genetic influences. Copyright © 2007 John Wiley & Sons, Ltd.
Article
The response deals with several controversial issues: theoretical concepts of cognitive abilities, their cultural relativity in definition or level, the meaning and validity of national cognitive ability, methodological questions like the ecological fallacy, the variance of intelligence at different levels of observation, multi-level analysis, the correctness and importance of levels of analysis in cognitive-ability research, the aggregation and adjustment process, and the similarities of different cognitive assessment approaches. Central to this research are questions of causality (the causes and consequences of national cognitive-ability homogeneity and level), of malleability of these levels, and of ethical and political consequences of intelligence research. Copyright © 2007 John Wiley & Sons, Ltd.
Article
Delay discounting (DD), the tendency to prefer smaller, sooner rewards to larger, later ones, is an important indicator of self-control. Assessments of DD superficially require individuals to make choices based on motivational processes. However, several lines of evidence suggest that DD may be systematically related to cognitive ability. We sought to provide a definitive assessment of the relation between DD and intelligence via quantitative research synthesis. A comprehensive literature search in two electronic databases yielded 24 eligible studies with 26 effect sizes in total. Meta-analysis revealed that, across studies, higher intelligence was associated with lower DD (random effects model weighted mean r = − 0.23). Studies using reward schemes in which payoffs were subject to chance (i.e., involving either a chance of receiving one choice or random selection of one choice) showed weaker associations between DD and intelligence than did studies in which payoffs were all hypothetical or all real. Other moderator analyses revealed no influence of DD measure, DD choice paradigm, or intelligence type. There was no evidence of publication bias. Given clear evidence for a negative relation between DD and intelligence, investigating the processes that support or moderate this relation would be worthwhile.
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On the basis of several reviews of the literature, Lynn [Lynn, R., (2006). Race differences in intelligence: An evolutionary analysis. Augusta, GA: Washington Summit Publishers.] and Lynn and Vanhanen [Lynn, R., & Vanhanen, T., (2006). IQ and global inequality. Augusta, GA: Washington Summit Publishers.] concluded that the average IQ of the Black population of sub-Saharan Africa lies below 70. In this paper, the authors systematically review published empirical data on the performance of Africans on the following IQ tests: Draw-A-Man (DAM) test, Kaufman-Assessment Battery for Children (K-ABC), the Wechsler scales (WAIS & WISC), and several other IQ tests (but not the Raven's tests). Inclusion and exclusion criteria are explicitly discussed. Results show that average IQ of Africans on these tests is approximately 82 when compared to UK norms. We provide estimates of the average IQ per country and estimates on the basis of alternative inclusion criteria. Our estimate of average IQ converges with the finding that national IQs of sub-Saharan African countries as predicted from several international studies of student achievement are around 82. It is suggested that this estimate should be considered in light of the Flynn Effect. It is concluded that more psychometric studies are needed to address the issue of measurement bias of western IQ tests for Africans.
Article
We present a simple model of an entrepreneur going public in an environment with poor legal protection of outside shareholders. The model incorporates elements of Becker's (J. Political Econ. 106 (1968) 172) “crime and punishment” framework into a corporate finance environment of Jensen and Meckling (J. Financial Econ. 3 (1976) 305). We examine the entrepreneur's decision and the market equilibrium. The model is consistent with a number of empirical regularities concerning the relation between investor protection and corporate finance. It also sheds light on the patterns of capital flows between rich and poor countries and on the politics of reform of investor protection.
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How do financial systems affect economic growth? We construct an endogenous growth model in which financial systems evaluate prospective entrepreneurs, mobilize savings to finance the most promising productivity-enhancing activities, diversify the risks associated with these innovative activities and reveal the expected profits from engaging in innovation rather than the production of existing goods using existing methods. Better financial systems improve the probability of successful innovation and thereby accelerate economic growth. Similarly, financial sector distortions reduce the rate of economic growth by reducing the rate of innovation. A broad battery of evidence suggests that financial systems are important for productivity growth and economic development.
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Solow's growth model is further augmented to include IQ in addition to proxies for education and health. The estimates indicate that IQ variable greatly erodes the size and significance of education and health parameters and dominates even a measure of institutional quality.
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This paper presents a parameter covariance matrix estimator which is consistent even when the disturbances of a linear regression model are heteroskedastic. This estimator does not depend on a formal model of the structure of the heteroskedasticity. By comparing the elements of the new estimator to those of the usual covariance estimator, one obtains a direct test for heteroskedasticity, since in the absence of heteroskedasticity, the two estimators will be approximately equal, but will generally diverge otherwise. The test has an appealing least squares interpretation.
Article
In his comment on our literature review of data on the performance of sub-Saharan Africans on Raven's Progressive Matrices, Lynn (this issue) criticized our selection of samples of primary and secondary school students. On the basis of the samples he deemed representative, Lynn concluded that the average IQ of sub-Saharan Africans stands at 67 when compared to UK norms after a correction of the Flynn Effect. We criticize his methods for being unsystematic. Here we select only those samples that were based on stratified or clustered random sampling and were deemed representative by the original authors. We again fail to replicate Lynn's low estimate of the average IQ of Africans. We argue that these scores are hard to interpret in terms of latent cognitive variables such as g because of the psychometric incomparability we established and because the Flynn Effect has yet to take hold in sub-Saharan Africa.
Article
This paper provides a survey on studies that analyze the macroeconomic effects of intellectual property rights (IPR). The first part of this paper introduces different patent policy instruments and reviews their effects on R&D and economic growth. This part also discusses the distortionary effects and distributional consequences of IPR protection as well as empirical evidence on the effects of patent rights. Then, the second part considers the international aspects of IPR protection. In summary, this paper draws the following conclusions from the literature. Firstly, different patent policy instruments have different effects on R&D and growth. Secondly, there is empirical evidence supporting a positive relationship between IPR protection and innovation, but the evidence is stronger for developed countries than for developing countries. Thirdly, the optimal level of IPR protection should tradeoff the social benefits of enhanced innovation against the social costs of multiple distortions and income inequality. Finally, in an open economy, achieving the globally optimal level of protection requires an international coordination (rather than the harmonization) of IPR protection.
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We examine the effect of securities laws on stock market development in 49 countries. We find almost no evidence that public enforcement benefits stock markets, and strong evidence that laws facilitating private enforcement through disclosure and liability rules benefit stock markets.
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This paper examines the nature of links between the intensity of financial intermediation and economic performance that operated in the United States, the United Kingdom, Canada, Norway, and Sweden over the 1870-1929 period. After describing the coevolution of the financial and real sectors in these countries, vector error correction models (VECMs) establish the quantitative importance of long-run relationships among measures of financial intensity and real per capita levels of output and the monetary base. Granger causality tests then suggest a leading role for the intermediation variables in real sector activity, while feedback effects are largely insignificant. The results suggest an important role for intermediation in the rapid industrial transformations of all five counries.
Article
Human capital plays an important role in the theory of economic growth, but it has been difficult to measure this abstract concept. We survey the psychological literature on cross-cultural IQ tests and conclude that intelligence tests provide one useful measure of human capital. Using a new database of national average IQ, we show that in growth regressions that include only robust control variables, IQ is statistically significant in 99.8% of these 1330 regressions, easily passing a Bayesian model-averaging robustness test. A 1 point increase in a nation’s average IQ is associated with a persistent 0.11% annual increase in GDP per capita. Copyright Springer Science + Business Media, Inc. 2006
Article
Standard indicators of human capital endowment — like literacy, school enrollment ratios or years of schooling — suffer from a number of defects. They are crude. Mostly, they refer to input rather than output measures of human capital formation. Occasionally, they produce implausible effects. They are not robustly significant determinants of growth. Here, they are replaced by average intelligence. This variable consistently outperforms the other human capital indicators in spite of suffering from severe defects of its own. The immediate impact of institutional improvements, i.e., more government tolerance of private enterprise or economic freedom, on growth it is in the same order of magnitude as intelligence effects are. The senior author is responsible for picking a ‘politically incorrect’ topic, i.e., analyzing the impact of IQ or average intelligence. The junior author has done the data compilation and the computations.
Article
Since 1996, the Economic Freedom of the World (EFW) reports have presented an index that measures the consistency of a nation's policies and institutions with economic freedom. The key ingredients of economic freedom are personal choice, voluntary exchange, freedom to compete, and protection of person and property. Earlier versions of the EFW index have been based almost exclusively on objective quantifiable data. However, some important elements of economic freedom, particularly those dealing with property rights and regulatory restraints, are difficult to capture with objective measures. This paper integrates survey data on legal structure and government regulation into the EFW index and uses it to develop a more comprehensive measure of economic freedom.