The standard one-sector real business cycle model is unable to generate expectations-driven business cycles. The current paper shows that this conundrum can be solved by adding countercyclical markups and modest capital adjustment costs.

Countercyclical markups are a key transmission mechanism in many endogenous business cycle models. Yet, recent findings suggest that aggregate markups in the US are procyclical. The current model adresses this issue. It extends Gali's (1994) composition of aggregate demand model by endogenous...

The standard one-sector real business cycle model is unable to generate expectations-driven fluctuations. The addition of countercyclical markups and modest investment adjustment costs offers an easy fix to this conundrum. The simulated model generates quantitatively realistic business cycles...

Recent empirical evidence suggests that product creation is procyclical and it occurs largely within existing fi rms. Motivated by these findings, the current paper investigates the role of intrafi rm product scope choice in a general equilibrium economy with oligopolistic producers. We show...