In sticky price models with endogenous investment, virtually all monetary policy rules that set a nominal interest rate in response solely to future inflation induce real indeterminacy of equilibrium. Applying the Samuelson-Farebrother conditions, we obtain a necessary and sufficient condition...

A challenge facing the literature of equilibrium indeterminacy and sunspot-driven business cycle fluctuations based on increasing returns to scale in production is that the required degree of increasing returns for generating indeterminacy can be implausibly large and rise quickly with the...

This paper studies the empirical relevance of temptation and self-control using household-level data from the Consumer Expenditure Survey. We construct an infinite-horizon consumption-savings model that allows, but does not require, temptation and self-control in preferences. To distinguish...

We argue that financial frictions and financial shocks can be an important factor behind the slow recoveries from the three most recent recessions. To illustrate this point, we augment a simple RBC model with a collateral constraint whose tightness is randomly disturbed by a shock that...

Financial frictions and financial shocks can affect the trade-off between inflation stabilization and output-gap stabilization faced by a central bank. Financial frictions lead to a greater response in output following any deviation of inflation from target and thus lead to an increase in the...

Empirical evidence suggests that both leisure time and medical care are important for maintaining health. We develop a general equilibrium macroeconomic model in which taxation is a key determinant of the composition of these two inputs in the endogenous accumulation of health capital. In our...

We develop a general equilibrium macroeconomic model with endogenous health accumulation, and we use the model's equilibrium condition to estimate the elasticity of substitution between medical care and leisure time in maintaining health, based on a cross-country panel dataset. Our econometric...

In this paper we investigate the nature of rational expectations equilibria for economic epidemiological models. Unlike mathematical epidemiological models, economic epidemiological models can produce regions of indeterminacy or instability around the endemic steady states. We consider SI, SIS,...

We argue that financial frictions and financial shocks can be an important factor behind the slow recoveries from the three most recent recessions. To illustrate this point, we augment a simple RBC model with a collateral constraint whose tightness is randomly disturbed by a shock that...

We build a model in which financial intermediaries provide insurance to households against idiosyncratic liquidity shocks. Households can invest in financial markets directly if they pay a cost. In equilibrium, the ability of intermediaries to share risk is constrained by the market. From a...