The arrival of motorization, from before the beginning of the twentieth century, has changed agricultural production and the whole economy by dramatically reducing work force and improving productivity. Yet the negligence of research on the history of farm mechanization is surprising given that...

In this paper we examine theoretically and by simulation whether or not unobserved heterogeneity independent of the included regressors is really an issue in logit, probit and loglog models with both binary and fractional data. We found that unobserved heterogeneity: (i) produces an attenuation...

This paper was replaced by CEFAGE-UE Working Paper 2009/10.

O novo paradigma rural requer importantes mudanças na concepção e implementação de políticas para incluir uma abordagem cross-cutting e multi-nível da governância territorial. Desenhar políticas de desenvolvimento rural para diferentes territórios exige a conciliação de conhecimento...

This paper presents three tests of contagion of the US subprime crisis to the European markets of the NYSE-Euronext group. Copula models are used to analyse dependence structures between the US's and the other markets in the sample, in the pre-crisis and in the subprime crisis periods. The first...

The aim of this paper is to develop a conceptual framework for the analysis of consumer behaviour concerning the evaluation and choice of food products. The paper presents a review of theory on the processes of consumers' decision making and quality perception. Following this review, a...

Higher education systems have generally been adapting to increasing demand, higher quality requirements and severe financial constraints. In Portugal, where public funding critically depends on the new enrolments, the short term uncertainties of declining applications exacerbate systemic long...

This paper intends to explore the utilization of entropy through politics and election results, an area just slightly explored. It generalizes the interpretation of entropy, considering it a measure of dissatisfaction and disillusion of populations in relation to politics. Some phenomena like...

Numerous initiatives of different nature have taken place in Portugal over the recent years aiming at raising consciousness of the importance and advantages of innovation and entrepreneurship, persuading businesspeople to place innovation as strategic intent and encouraging would-be...

In many economic settings, the variable of interest is often a fraction or a proportion, being defined only on the unit interval. The bounded nature of such variables and, in some cases, the possibility of nontrivial probability mass accumulating at one or both boundaries raise some interesting...