José Juan Cáceres Hernández

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• PhD
• Senior Lecturer at University of La Laguna

Purpose This paper aims to deal with the grape sourcing strategies of wineries in the Canary Islands. Design/methodology/approach Sourcing decisions are analysed from official registers of transactions between wineries and their external suppliers. The main sources of information are harvest reports submitted by wineries containing data about obse...

The aim of this paper is to describe and compare seasonal effects in daily air passenger arrivals. Multiple seasonal cycles of different lengths are usually observed in daily time series. To model weekly cycles over a short and fixed seasonal period, conventional formulations can be applied. However, the length of yearly and, above all, monthly sea...

The territorial dimension of transactions between grape growers and wine producers in the Canary Islands’ grape market is examined. This is a market fragmented into different wine-grape zones and institutionally organised through protected designations of origin (PDOs) which, except in the case of one that is regional in scope, restrict the spatial...

Hourly data usually exhibit complex seasonal variations characterized by yearly, monthly, weekly or daily seasonal patterns. Each seasonal variation is modelled by using an evolving spline function in such a way that a seasonal effect at a proportion of the seasonal period is defined as a non-fixed parametric formulation of this proportion. Subsequ...

Background The composition of the average diet for the Canary Islands’ population has been the subject of concern for the region’s authorities and nutrition specialists. In this study, the composition of the average diet in the Canary Islands is estimated. Method The approach is based on secondary data on local production and external trade. The b...

Food security is usually identified as a desirable outcome depending on a variety of factors such as food availability, access and distribution. Food self-sufficiency is one of the key factors when it comes to evaluating food availability. Furthermore, food self-sufficiency is not only a national concern but also relevant on a sub-national scale. A...

From an econophysical point of view, this paper deals with a pivotal old topic that still remains paradoxically unsolved in economics: the relationship between labor and value under the influence of the second law of thermodynamics, in parallel to the relationship between value and price under the influence of market. With this aim, economic system...

The aim of this paper is to assess the production costs of Canary tomato exports in comparison to its main competitors. The activity-based costing methodology is applied. To gather information about the cultivation and packaging activities throughout an agricultural season, two surveys were conducted for separate samples of farmers and packaging ce...

Weekly series of agricultural prices usually exhibit seasonal variations and the stationarity of these variations should be taken into account to analyse price relationships. However, unit root tests at seasonal frequencies are unlikely to have good power properties. Furthermore, movements in actual price series are often not as expected when unit...

Consumption-oriented approach to measuring food self-sufficiency in the Canary Islands

A genetic algorithm is developed to forecast the relative presence of different profiles in Spain’s unemployed population. A selection operator is defined that assumes that the higher the unemployment rate of a profile, the higher the probability that such a profile is present in future populations. A transition matrix takes other factors into acco...

The univariate statistical properties of agricultural price series need to be examined as a first step in the analysis of price transmission mechanisms. However, in the case of weekly price series, increasingly available, the testing procedures usually applied in this step are not suitable to deal with evolving seasonal effects. In this study, a me...

Background An economic crisis can widen health inequalities between individuals. The aim of this paper is to explore differences in the effect of socioeconomic characteristics on Spaniards’ self-assessed health status, depending on the Spanish economic situation. Methods Data from the 2006–2007 and 2011–2012 National Health Surveys were used and b...

A genetic algorithm is developed to forecast the relative presence of different university studies in the higher education demand in the field of economics and business/management as a whole. A selection operator is defined that assumes that the better the job opportunities associated with a specific university study, the higher the future demand f...

Statistical procedures are proposed to describe, compare and forecast the behaviour of seasonal variations in two daily price series of Canary tomato exported to German and British markets, respectively, over the last decade. These seasonal patterns are pseudo-periodic as the length of the seasonal period changes frequently in dependence of market...

Los productores canarios de plátano han optado en los últimos años por no enviar al mercado peninsular una parte significativa de su oferta exportable. Este trabajo aporta una herramienta analítica que permite aproximar los efectos marginales en el ingreso y en el beneficio derivados de estas decisiones. El elemento clave del procedimiento radica e...

A seasonal model is proposed to forecast agricultural prices with pseudo-periodic seasonal patterns, in which the length of the seasonal period does not remain the same over time. The seasonal effect at a season is defined as a function of the proportion of the seasonal period length elapsed up to this season, and the seasonal pattern is modelled b...

Resumen El análisis sensorial mediante sesiones de cata es el método generalmente aceptado para la valoración de la calidad de los vinos. Si bien, los más modernos análisis de laboratorio pueden revelar un conjunto importante de sus características y detectar ciertos defectos, no son capaces de evaluar todos los parámetros asociados con la calidad...

Este artículo ofrece una primera aproximación a la historia de los precios canarios del periodo moderno. En concreto, examina el precio del trigo, el producto que constituía el principal sustento de la población hasta mediados del siglo XVII, cuando comenzó a ser desplazado y cada vez con mayor intensidad por el millo (maíz) y la papa (patata). La...

Sea shipping is the main transport mode used by Canary farmers to export tomatoes to the European markets. Provincial associations of Canary growers negotiate charter fees with the shipping companies for the whole exporting period and, therefore, provide a unified sea transport service. When such a negotiation takes place each year, the individual...

In this paper a seasonal model is proposed to deal with heterogeneous seasonal patterns, in which neither the length of the seasonal period nor the magnitude of the seasonal effects remains the same over time. In these settings, there is a need for parsimony and flexibility. To this end, the seasonal effect at a season is defined as a function of t...

This paper deals with the potential effects on the profitability of Canary Islands’ farms due to the Special National Insurance System for Agricultural Workers Reform which was put in place in 2009 by the Spanish Government Ministry of Labour and Immigration. The effect on the employers’ National Insurance contributions per working day is analy...

This paper deals with the potential effects on the profitability of Canary Islands’ farms due to the Special National Insurance System for Agricultural Workers Reform which was put in place in 2009 by the Spanish Government Ministry of Labour and Immigration. The effect on the employers’ National Insurance contributions per working day is analysed....

The aim of this study is to analyze the decisions on the frequency of wine consumption to detect the individual characteristics of the potential consumer that influence the propensity towards each decision. Discrete choice models, and in particular, logit models have been seen as tools which are able to identify the way in which a specific combinat...

Se formula un procedimiento para determinar el momento óptimo de inicio y final de la campaña exportadora de una explotación dedicada al cultivo de tomate en Canarias. Las horas semanales de trabajo en tareas de cultivo constituyen el elemento fundamental para evaluar los costes fijos, para el conjunto de la campaña, y variables, según la sema...

In this paper a seasonal model is proposed to deal with weekly agricultural seasonal patterns in which neither the length of the seasonal period nor the magnitude of the seasonal effects remain the same over time. To model this heterogeneous seasonal behaviour, the seasonal effect at a season is defined as a function of the proportion of the length...

Se formula un procedimiento para determinar el momento óptimo de inicio y final de la campaña exportadora de una explotación dedicada al cultivo de tomate en Canarias. Las horas semanales de trabajo en tareas de cultivo constituyen el elemento fundamental para evaluar los costes fijos, para el conjunto de la campaña, y variables, según la semana de...

The number of tourists that visit a mature tourism destination becomes stable. If recommendations that could adjust the supply structure towards demand needs in this scenario are established as administration goals, then forecasting the total number of tourists is important, but of particular interest is the internal composition of the demand in te...

In this paper, it is shown that ordered formulations may be too restrictive to capture the nature of an individual decision process guided by the maximization of utility if the order between alternatives does not match with the order of utilities related to them. To illustrate the disability of ordered formulations the results of estimating a stand...

In this paper an appropriate model of the seasonal pattern in agricultural data is proposed, which takes the specific nature of such a pattern into account. The methodological proposal is based on evolving splines that are shown to be a tool capable of modeling seasonal variations in which either the period or the magnitude of the seasonal fluctuat...

In this paper an appropriate model of the seasonal pattern in high frequency agricultural data is proposed that takes the specific nature of such a pattern into account. The methodological proposal is based on evolving splines that are shown to be a tool capable of modelling seasonal variations in which either the period or the magnitude of the sea...

El crecimiento demográfico en Tenerife en los últimos años ha generado mayor demanda de servicios educativos. Dado que este incremento no ha sido homogéneo en todo el territorio insular, los desequilibrios oferta-demanda son diferentes según municipios. Y estos desajustes deberían ser considerados a la hora de decidir la instalación de nuevos centr...

The European tomato market is characterized by a constant process of dynamic adjustment towards equilibrium. Furthermore, Canary Island tomato exports cause a high seasonal impact on market prices in the winter period. In these circumstances, an adequate distribution of weekly shipments throughout the year could contribute to maximize producers' pr...

The aim of this paper is to analyse the long term movements and, particularly, the seasonal pattern of Tenerife (Canary Islands) tomato exports throughout the last two decades. In order to observe more clearly the exporter’s decisions, weekly data has been used. The instabilities in the long term behaviour of the series and the specific nature o...

El mercado europeo de tomate para consumo en fresco se encuentra actualmente saturado por la oferta de distintas procedencias y la exportación almeriense es una de las responsables de la situación de sobreoferta en determinadas semanas del periodo de invierno. En este trabajo se propone un modelo que recoge la evolución de la exportación semanal de...

In the electricity generating sector of an economy, supply hardly responds to unexpected demand increases. Furthermore, the seasonal pattern accounts for a major part of short-term variations in demand. In this sense, identifying the salient features of this pattern could contribute in avoiding supply problems.This paper is concerned with the analy...

A suitable method is set forth in this study for isolating and describing high frequency seasonal variations which may occur in some sets of time series in the healthcare setting. If the simultaneous presence of seasonal variations within a day, a week and a year is not taken into account, the estimates of seasonal behaviours may be noticeably dist...

En este trabajo se propone un método apropiado para aislar y describir las variaciones estacionales de alta frecuencia que pueden estar presentes en determinadas series horarias del ámbito sanitario. Si no se tiene en cuenta la presencia simultánea de variaciones estacionales de periodo diario, semanal y anual los comportamientos estacionales estim...

This paper studies the evolution of the weekly exports of Canary Island tomatoes after the entry of Spain in the European Union. A first analysis of deterministic components reveals their instability, clearly related to changes in the EU commercial regulations of access to European markets, and the presence of many outliers due to different reasons...

The European tomato market is characterised by a constant process of dynamic adjustment toward the equilibrium. Furthermore, Canary tomato exports cause a high seasonal impact on market prices in the winter period. In these circumstances, an adequate distribution of shipments throughout the campaign could contribute to maximize producers’ profit...

Hylleberg y otros (1990) desarrollaron un procedimiento de contraste de raíces unitarias estacionales para datos trimestrales. Dicho procedimiento fue extendido a series semanales por Cáceres (1996). Pues bien, en este trabajo se examinan los efectos de la presencia de observaciones anómalas sobre el tamaño y la potencia de los contrastes de raíz u...

En un contexto de fuerte tradición competitiva, los productores tomateros canarios han protagonizado un importante esfuerzo innovador que ha contribuido a la mejora de la calidad de la fruta y ha amortiguado el crecimiento de los costes de cultivo a través del incremento de rendimientos. Sin embargo, no se ha resuelto el problema de los desajustes...

En este trabajo se examina la evolución reciente de los costes de cultivo, empaquetado y comercialización del tomate canario exportado a Europa. El proceso innovador al que obli-gaba una competencia creciente ha significado un incremento de rendimientos por planta y, paralelamente, un incremento de los costes por mata, de tal manera que los costes...

In this paper we present a methodological proposal of the way integration and cointegration analysis can best be used to test if the level of aggregation of an index is adequate. Using this proposal, we enquire the extent to which a Spanish aggregate farm price index captures the behavior of its components.

En este trabajo se propone un procedimiento de contraste de integración en las frecuencias estacionales correspondientes a datos observados con periodicidad semanal. El contraste obtenido está basado en el procedimiento desarrollado por Hylleberg, Engle, Granger y Yoo (1990) para datos trimestrales. Finalmente, se obtienen las distribuciones empíri...