We examine the standard New Keynesian economy's Ramsey problem written in terms of instrument settings instead of allocations. Its standard formulation makes two instruments available: the path of current and future interest rates, and an "open mouth operation" which selects one of the many...

We analyze several identification frameworks based on operating procedures to measure monetary policy in a small open economy. We use a two-stage non-recursive VAR model to identify monetary shocks. We construct then various overall monetary policy indicators based on different residuals...

The combination of credit constraints and indivisible consumption goods may induce some risk-averse individuals to gamble to have a chance of crossing a purchasing threshold. One implication of this is that income effects for individuals who choose to gamble are likely to be larger than for the...

This paper introduces heterogeneous households into an otherwise standard sticky-price model with industry-specific labor markets. Households differ in labor incomes and asset markets are incomplete. I show that household heterogeneity affects equilibrium dynamics nontrivially by amplifying...

This paper presents a general equilibrium currency crisis model of the "third generation", in which the possibility of currency crises is driven by the interplay between private firms' credit-constraints and nominal price rigidities. Despite our emphasis on microfoundations, the model remains...

This paper explains the emergence of liquidity traps in the aftermath of large-scale financial crises, as happened in the US 1930s, Japan 1990s and recently in the US and Europe. The paper introduces a new balance sheet channel that links equity capital to the risk-free interest rate. When...