This paper analyses the evolution of inequality among twenty-four countries belonging to the OECD during the period 1962-1993, using the database provided by this Organization. It argues the relevance of distinguishing between the two variables that arehabitually considered in the analysis of...

This paper analyses the importance of R&D activities in the explanation of productivitydifferences among the Spanish regions over the period 1986-96. With this aim, we measure the effectof the own technological innovation and the spillovers effects. The analysis is based on the estimationof a...

We experimentally study the e¤ect of time on altruism. By postponing payments in a standard Dictator game, subjects allocate a future payment between themselves and others. Since both the payoffs of the Dictator and the Receiver are delayed until the same time, standard intertemporal utility...

In this paper we have introduced and parameterized the concept of ?group cohesion? in a model of local interaction with a population divided into groups. This allows us to control the level of ?isolation? of these groups: We thus analyze if the degree of group cohesion is relevant to achieve an...

We consider a continuous spatial economy consisting of pure exchange local economies. Agents are allowed to change their location over time as a response to spatial utility differentials. These spatial adjustments toward higher utility neighborhoods lead the spatial economy to converge to a...

This paper is founded in a previous estimation of the stock of capital of theSpanish economy incorporating two new developments. First, this new estimation is anestimation of the directly productive capital stock of the Spanish economy, whosepurpose is to know its productive capacity. Second,...

This paper questions the empirical evidence of the relationship between inequality and growth on the basis of the estimation of convergence equations. The criticisms are aimed in two directions - at the quality of the data and at the standard estimation procedure. It begins by describing in...

This paper shows the importance of the composition of production -productive specialization- and sector inefficiencies when evaluating efficiency in aggregate production. For this purpose, a new approach is proposed for obtaining efficiency scores which enables two components to be...

This work presents a theoretical framework to study if the motive for money-transfers within families is altruism or exchange. We propose models which explicitly incorporate transfers on education as an additional family transfer. Our models allows us to discriminate between the two possible...

We study an overlapping generations economy with altruistic agents in which the productivity of a child?s labour endowment depends on an idiosyncratic shock and on the resources spent by her parent in education her. The parent cannot borrow but can leave a nonnegative bequest which earns a...