Financial innovation has increased opportunities for diversification and lowered investment costs, but has not reduced the relative cost of active (informed) investment strategies compared with passive (less informed) strategies. What are the consequences? I have studied an economy with linear...

Since output growth volatility has negative effects on growth, poverty and welfare, especially in poorer countries, it is crucial to identify the country-specific factors that affect it. The empirical literature has focused mostly on financial development, policy distortions and globalization...

In an economy where entrepreneurs with unequal "abilities" face alternative investment projects, which differ in degree of risk and productivity, we analyse the Nash equilibrium contracts arising from a banks-borrowers game in the context of asymmetric information. We show that, for a particular...

This paper presents an endogenous growth models with intertemporally dependent preferences and "Ak" technology. We derive sufficient conditions for a balanced growth path to be an equilibrium, provide a full characterization of the equilibrium dynamics of the economy, and explore the...

This paper investigates the markup of price over marginal cost in Italian manufacturing branches. The approach used is an extension of Hall's model that addresses some measurement shortcomings and theoretical limitations that may affect this class of model.

Supervisors and policy makers pay increasing attention to the possible procyclical nature of banks� behaviour. Indeed, to guarantee macro and financial stability, it is important to understand whether, and to what extent, banks are affected by the macroeconomy and second round effects...

This paper presents an endogenous growth model with intertemporally dependent preferences and "Ak" technology. We derive sufficient conditions for a balanced growth path to be an equilibrium, provide a full characterization of the equilibrium dynamics of the economy, and explore the implications...

This paper investigates the markup of price over marginal cost in Italian manufacturing branches. The approach used is an extension of Hall�s model that addresses some measurement shortcomings and theoretical limitations that may affect this class of model. The hypothesis of perfect...

Since the adoption of flexible exchange rates, real exchange rates have been much more volatile than they were under Bretton Woods. However, the volatilities of most other macroeconomic variables have remained approximately unchanged. This poses a puzzle for standard international business cycle...