Over the last three decades there has been a dramatic increase in the size of the financial sector and in the compensation of financial executives. This increase has been associated with greater risk-taking and the use of more complex financial instruments. Parallel to this trend, the...

We study the optimal monetary policy in a two-country open-economy model under two monetary arrangements: (a) multiple currencies controlled by independent policy-makers; (b) common currencies controlled by a centralized policy-maker. Our findings suggest that: (i) Monetary policy competition...

We study how barriers to competition - such as, restrictions to business start-up and strict enforcement of covenants or IPR - affect the investment in knowledge capital when contracts are not enforceable. These barriers lower the competition for human capital and reduce the incentive to...

During the period from 1880 to 1950 publicly managed retirement security programs became an important part of the social fabric in most advanced economies. In this paper we study the social, demographic and economic origins of social security. We describe a model economy in which demographics,...

We study the interplay between competition and trust as efficiency-enhancing mechanims in the private provision of money. With commitment, trust is automatically achieved and competition ensures efficiency. Without commitment, competition plays no role. Trust does play a role but requires a...

We characterize the optimal sequential choice of monetary policy in economies with either nominal or indexed debt. In a model where nominal debt is the only source of time inconsistency, the Markov-perfect equilibrium policy implies the progressive depletion of the outstanding stock of debt,...

We study the emplyment and distributional effects of regulating (reducing) working time in a general equilibrium model with search-matching frictions. Job creation entails some fixed costs, but existing jobs are subject to diminishing returns. We characterize the equilibrium in the de-regulated...

We develop and compute a dynamic equilibrium model where economies differ on the relative efficiency of financial intermediaries and, therefore on households portfolios and currency holdings. Our model economies have some of the features of the different financial structures in countries of the...

We develop an equilibrium search-matching model with risk-neutral agents and two-sided ex-ante heterogeneity. Unemployment insurance has the standard effect of reducing employment, but also helps workers to get a suitable job. The predictions of our simple model are consistent with the...

Inflation and financing of public expenditure by are analysed in an OLG model where the deficit is constrained to be less than a given fraction of intergenerational savings. Even if there may be multiplicity of steady-state equilibria, we show that, with such a constraint, the dynamics with...