We study the stability properties of a Diamond (1965) overlapping generations model in which agents have to pay transaction costs related to the capital accumulated. In particular, these costs depend positively on the amount of individual's savings. At first, we show that under stan- dard...

We consider a Ramsey model with heterogeneous agents and borrow- ing constraint. Heterogeneity across agents stems from di¤erent initial capital endowment, labor supply, felicity function and discount rate. For simplicity, heterogeneity is reduced to only two groups of agents where they are...

In this paper, we present a dynamic general equilibrium model with two sectors: one aggregate firm produces consumption good and a second one investment good. We assume sector specific as well as aggregate ex- ternalities. Moreover, we account for variable capital utilization i.e. the...