In this paper we study the role of financial systems for the cost channel transmission of monetary policy in a calibrated business cycle model. We analyze the different effects that monetary policy has on the economy, in particular on output and inflation, which are due to differences in...

We develop a dynamic general equilibrium model of imperfect competition where a sunk cost of creating a new product regulates the type of entry that dominates in the economy: new products or more competition in existing industries. Considering the process of product innovation is irreversible,...