We develop a model of commodity money and use it to analyze the following two questions motivated by issues in monetary history: What are the conditions under which Gresham's Law holds? And, what are the mechanics of a debasement (lowering the metallic content of coins)? The model contains light...

A classic result in the theory of implicit contract models with asymmetric information is that “underemployment” results if and only if leisure is an inferior good. We introduce household production into the standard implicit contract model and show that we can have underemployment at the...

We integrate search theory into an equilibrium framework in a new way and argue that the result is a simple but powerful tool for understanding many issues related to bilateral matching. We assume for much of what we do that utility is less than perfectly transferable. This turns out to generate...

We analyze the effects of productivity risk on the expected utility of workers under efficient labor contracts. With multiplicative uncertainty in productivity, an increase in risk increases workers' expected utility, holding expected profit constant, as has been shown by Rosen. With a...

We motivate and provide an overview to New Monetarist Economics. We then briefly describe the individual contributions to the <italic>Macroeconomics Dynamics</italic> special issues on money, credit, and liquidity.