Notwithstanding the numerous applications of fuzzy logic in several fields of economics, it is surprising that, to the best of our knowledge, so very few applications have been made in modelling approximations of subjective economic variables, such as confidence, satisfaction or even...

This paper, on the one hand, traces some of the main features of research evaluation, points out some reasons why institutions want to have their research work evaluated, and presents some of the main problems of evaluation. On the other hand, characterizes hog production, in the south of...

The paper offers an analysis of the issues related to the election dates synchronisation between two countries. The first purpose of the paper is to analyse the circumstances in which a government of a single country, considered to be a small economy, has incentives, or not, to synchronise the...

This paper provides an integrated approach for estimating parametric models from endogenous stratified samples. We discuss several alternative ways of removing the bias of the moment indicators usually employed under random sampling for estimating the parameters of the structural model and the...

The great majority of the theoretical analysis about electoral cycles has considered the national space as the territory of interest for the study of the economic consequences of an electoralist behaviour by the central government. This fact, in conjunction to the nature of the data most...

This paper extends the neoclassical growth model with natural capital by introducing two new concepts: allocation of natural capital and materialization. We consider that anthropogenic environmental impact is correlated with the throughput of the economy (materialisation). Materialisation is the...

Abstraindo-nos dos inegáveis e inquestionáveis benefícios sociais e políticos da democracia, esta apresenta efeitos de natureza económica que importa também estudar. Uma das mais importantes vias de transmissão de efeitos por parte da democracia à economia prende-se com a existência de...

The agro-silvopastoral system ?montado? dominates the landscape of the south-western Iberian Peninsula, occupies approximately 3.1 million hectares of woodland in Spain and 1.2 million hectares in Portugal. The forest system ?montado? is mostly dominated by Mediterranean evergreen oaks such as...

The objective of this paper is to estimate the impact of carbon dioxide emissions from fossil fuel combustion activities on economic activity in Portugal in order to evaluate the economic costs of policies designed to reduce carbon dioxide emissions. We find that energy consumption has a...