"We extend the basic Schumpeterian endogenous growth model by allowing incumbents to undertake innovations to improve their products, while entrants engage in more "radical" innovations to replace incumbents. Our model provides a tractable framework for the analysis of growth driven by both...

A literature debates the explanations for the cyclical properties of emerging markets using either trend shocks (Aguiar and Gopinath 2007) or financial frictions (Neumeyer and Perri 2004; Garcia-Cicco, Pancrazi, and Uribe 2010). We state a formal proposition that makes explicit the parametric...

This paper uses the tools developed in the literature on dynamically incomplete markets with finite agents to study the large economy with a continuum of agents and both aggregate and idiosyncratic shocks in Krusell and Smith (1998). It establishes the existence of sequential competitive...