This paper studies optimal taxation in a class of economies in which agents have dispersed private information regarding aggregate shocks (commonly-relevant fundamentals such as aggregate productivity and demand conditions). The dispersion of information opens the door to inefficiencies that...

We explore the quantitative importance of pricing complementarities in the context of a menu cost model of price adjustment. Using super-market scanner data, we document new evidence on the co-movement of prices and market shares at the product level, suggesting that changes in prices and market...

We develop a dynamic nonlinear, noisy REE model of credit risk pricing un- der dispersed information that can theoretically and quantitatively account for the credit spread puzzle. The first contribution is a sharp analytical characteri- zation of the dynamic REE equilibrium and its comparative...

We analyze investment incentives and risk-taking by firms when equity markets aggregate information with noise. Noisy information aggregation drives a wedge between the expected social value and the market value of investments, inducing inefficient rent-seeking by incumbent shareholders and...

I develop methods for solving dynamic economic models with heterogeneous information, with applications to business cycle fluctuations (price-setting) and asset pricing. The analysis requires only a minimal set of assumptions on the information structure, and provides analytical or quantitative...

We propose a theory of asset prices that emphasizes heterogeneous information as the main element determining prices of different securities. With only minimal restrictions on security payoffs and trader preferences, noisy aggregation of heterogeneous information drives a systematic wedge...

about fundamentals based on their own cash flows (revenues and wages). We show that in a model with realistic levels of product-level price dispersion, the firms’ inference about aggregate shocks is very gradual, yet in the aggregate prices adjust rapidly in response to aggregate nominal...

This paper studies an environment in which information aggregation interacts with investment decisions. The first contribution of the paper is to develop a tractable model of such interactions. The second contribution is to solve the model in closed form and derive a series of implications that...