We try to build a quantitative-theoretical framework to understand the impact of immigration on the Spanish pension system, both during the last ten years and, more importantly, during the future fifty years. In other words, we look at the recent past in a tentative to predict the future....

When credit markets to finance investment in human capital are missing, the competitive equilibrium allocation is inefficient. When generations overlap, this failure can be mitigated by properly designed social arrangements. We show that public financing of education and public pensions can be...

The case against patents can be summarized briefly: there is no empirical evidence that they serve to increase innovation and productivity, unless productivity is identified with the number of patents awarded—which, as evidence shows, has no correlation with measured productivity. Both theory...

We are interested in the following question: what are the intergenerational effects of a large and unexpected immigration flow? How does it affect the welfare of the different generations living in the country that receives the immigration flow and, in particular, how does it impact on...

In this paper, we model an overlapping generation economy affected by an unexpected immigration shock and determine how households would insure themselves against "immigration risks" efficiently. We use the model to study the impact of immigration on (i) the welfare of various generations, (ii)...

The controversy over Intellectual Property Rights (patents and copyright) is here to stay. The steady accumulation of substantial empirical evidence casting serious doubts on the allegedly beneficial effects that iprs have on innovation and creativity is forcing an increasing number of...

In this paper, we model an overlapping generation economy affected by an unexpected immigration shock and determine how households may insure themselves against “immigration risk”. We use the model to study the impact of immigration on (i) the welfare of different generations, (ii) the...