I show that the indivisible labor' models of Diamond and Mirrlees (1978, 1986), Hansen (1985), Rogerson (1988), Christiano and Eichenbaum (1992), and many others are, when aggregated across persons with the same marginal utility of income, equivalent to the divisible labor model of Lucas and...

Both the literature and new empirical evidence show that exchange rate regimes differ primarily by the noisiness of the exchange rate, not be measurable macroeconomic fundamentals. This motivates a theoretical analysis of exchange rate regimes with noise traders. The presence of noise traders...

This paper reviews the role of temporary price and wage rigidities in explaining the dynamic relationship between money, real output, and inflation. It summarizes microeconomic data on price and wage setting behavior, and argues that staggered price and wage setting models provide the most...

Policy rules that are consistent with inflation targeting are examined in a small macroeconomic model of the US economy. We compare the properties and outcomes of explicit instrument rules' as well as targeting rules.' The latter, which imply implicit instrument rules, may be closer to actual...

Specific quasi-rents build up in a wide variety of economic relationships, and are exposed to opportunism unless fully protected by contract. The recognition that such contracts are often incomplete has yielded major insights into the organization of microeconomic exchange. Rent appropriation,...

This paper presents a simple, general equilibrium macroeconomic model incorporating financial constraints, both credit and equity rationing, as well as other informational imperfections in labor and product markets, such as efficiency wage effects. A formulation somewhat analogous to the...

This paper presents a non-technical discussion of some of the important developments in macroeconomics over the past twenty years. It considers three broad categories of research. First, it discusses how the notion of rational expectations has affected economists' views on the role of economic...