We study and endogenous growth model where a profit-motivated R&D sector coexists with the introduction of free blueprints invented by philanthropists. These goods are priced at marginal cost, contrary to proprietary ones, which are produced by a monopoly owned by the inventor. We show that...

In this paper we study the relationship between labour market institutions and monetary policy. We use a simple macroeconomic framework to show how optimal monetary policy rules depend on labour institutions (labour adjustment costs, and nominal and real wage rigidity) and social preferences...

This Paper analyses the economic issues associated with human cloning and new reproductive technologies. We analyse the incentives for human cloning and its implications for the long run distribution of skills and income. We analyse models of human cloning for different motives, focusing on...

Identification of the strength of human capital externalities at the aggregate level is still not fully understood. The existing method may yield positive or negative externalities even if wages reflect marginal social products. We propose an approach that yields positive average human capital...

This Paper analyses the evolution of quantitative measures of employee rents in Europe during the nineties, using the European Household Panel Survey. I look at two classes of measures: wage differentials between workers along industry and firm size dimensions; and estimated welfare differences...

This Paper studies a model where Information Technology, while typically increasing overall inequality, is likely to harm some people at intermediate and high levels of the distribution of income but to benefit people at the bottom; where within a given occupation it may harm some workers while...

In this paper we study the evolution of the labour share in the OECD since 1970. We present a theoretical model showing that it is essentially related to the capital-output ratio; that this relationship is shifted by factors like the price of imported materials or the skill mix; and that...

We combine growth theory with US Census data on individual schooling and wages to estimate the aggregate return to human capital and human capital externalities in cities. Our estimates imply that a one year increase in average schooling in cities increases their aggregate labour productivity by...