We present a model where firms make competitive decisions about the optimal duration (or time to build) of their R&D projects. Choosing its project’s duration, the firm can choose to become a leader or a follower, based on its R&D efficiency, the size of the R&D to be carried out and the...

We examine to what extent banks’ stock market values during the 2007-2012 financial crisis were driven by increases in the default risk of banks designated as globally systemically important by the Financial Stability Board. We find that bank market values hardly respond to changes in the...

This paper shows that price rigidity evolves in an economy populated by imperfectly rational agents who experiment with alternative rules of thumb. In the model, firms must set their prices in face of aggregate demand shocks. Their payoff depends on the level of aggregate demand, as well as on...