In this paper we develop a general equilibrium model in which firms finance investment by signing long-term contracts with a financial intermediary. Due to enforceability problems, financial contracts are constrained optimal, that is, they maximize the surplus of the contract subject to...

This paper shows that the best known empirical biases of the Black and Scholes (1973) option pricing formula can be explained by investors learning the parameters of the underlying fundamental process. In the context of an equilibrium model where dividend news evolve on a binomial lattice we...

This paper study the intertemporal consumption and investment problem in a continuous time setting when the secutity prices follow a Geometric Levy Process. Using stochastic calculus for semimartingals we obtain sufficient conditions for the existence of optimal consump- tion and investment...

In this paper we show how risk free bonds of different maturities can be used to replace state contingent debt in a general equilibrium dynamic optimal taxation problem. In particular, we show that if the state of the economy can only take a finite number N of values each period, then the...

This paper aims at reconciling theoretical models of endogenous growth with the empirical evidence on trade and growth. In particular, we show that the conventional wisdom according to which trade is growth-impairing for a country with comparative advantage in goods with limited opportunities...

The paper develops a `signaling' based theory of discrimination where workers face different incentives for skill acquisition purely because of their group membership. Workers belonging to the disadvantaged group bear substantial signaling cost. The difference in signaling costs between groups...

In this paper I test whether there are strategic considerations in the making of fiscal policy. The general idea is that if a government anticipates the possibility of defeat in the next election it will try to use the debt strategically in order to influence the policy of its successor....

The relationships between wages, prices, productivity, inflation and unemployment in Italy between 1970 and 1994, are modelled using a cointegrated vector autoregression. There is evidence of a change in the underlying equilibria and in the dynamic evolution of the variables, probably associated...

I uncover a new force towards increasing dominance (the property whereby, in dynamic games, the leader tends to increase her lead in expected terms). The new effect results from the strategic choice of covariance in races. I assume that players must choose not the amount of resources to spend...

Learning and communication play important roles in coordinating activities. Game theory and experiments have made a significant contribution to our understanding and appreciation for the issues surrounding learning and communication in coordination. However, the results of past experimental...