In business cycle theory, his interests concern the general conditions for the existence of endogenous fluctuations within the framework provided by the overlapping-generations model and the growth model. Recently, his research focuses on the role of the income distribution on long run growth and instability.
Some related works focus on trade as a potential cause to fluctuations.
He is also interested on whether there is some scope for government intervention in view of stimulating growth and reducing fluctuations, and on how restrictions on government budget deficits affects the outcome. Presently, he is working on how expectations are computed by agents living in an infinite overlapping generations economy. Finally, he is working on the integration of contract theory and general equilibrium, extending the concept of the core to economies with moral hazard.