This chapter develops a dynamic general equilibrium model that is intended to help clarify the role of credit market frictions in business fluctuations, from both a qualitative and a quantitative standpoint. The model is a synthesis of the leading approaches in the literature. In particular, the...

We study how bounded rationality coevolves with the business cycle. We introduce a business-cycle model in which firms face a cognitive cost of making precise decisions. Theoretically, we characterize equilibrium with non-parametric, state-dependent stochastic choice. Firms have greater...

Central banks have responded with exceptional vigour to the crisis by using their traditional interest-rate tools to their limits and deploying a wide range of unconventional measures. This paper documents these responses in a systematic way, reviews the evidence about their impact, and...

This paper addresses the question of whether and how long-term financial trends may have modified the transmission mechanism from monetary policy decisions to economic activity. The focus is on longterm changes, abstracting from the disruptions created by the 2007-08 financial turmoil which are...