This paper investigates the conditions under which a dynamic, stochastic macroeconomic model with many interacting agents will exhibit the ‘small shocks, large shocks’ property that is often said to characterize observed time series: small shocks have a transient impact on the system,...

The sign of the relationship between expected stock market returns and volatility appears to vary over time, a result that seems at odds with basic notions of risk and return. In this paper we construct an economy where production involves the use of both labor and capital as inputs. We show...

This paper investigates the relationship between money growth, inflation, and productive activity in a general equilibrium model of search. The use of a multiple-matching technique, where trade frictions are captured by limited consumption variety, allows us to study price determination in a...

Firms with private information about the outcomes of production under uncertainty may face capital (liquidity) constraints that prevent them from attaining efficient levels of investment in a world with costly and/or imperfect monitoring. As an alternative, we examine the efficiency of a simple...