How can a particular allocation and prices be implemented? Under what conditions does a policy deliver a unique competitive equilibrium? How many degrees of freedom there are in the determination of the policy variables, or how many are the instruments of policy? In this paper we analyze a...

I construct a heterogeneous agents economy that mimics the time-series behavior of the US earnings distribution from 1963 to 2003. Agents face aggregate and idiosyncratic shocks and accumulate real and financial assets. I estimate the shocks driving the model using data on income inequality, on...

This appendix details the derivation of a number of results reported in "The Equivalence of Wage and Price Staggering in Monetary Business Cycle Models," which appears in the Review of Economic Dynamics.

We present a tractable model of state-dependent pricing and study the incentive for firms to adjust their price in response to shocks. We find a distinct asymmetry in this response. Positive shocks generate greater price flexibility (and smaller output effects) than negative shocks of the same...

This paper addresses the output-price volatility puzzle by studying the interaction of optimal monetary policy and agents' beliefs. We assume that agents choose their information acquisition rate by minimizing a loss function that depends on expected forecast errors and information costs....