The previous literature on optimal monetary policy has focused mainly on dynamic stochastic general equilibrium models with a constant aggregate capital stock (cf. Woodford 1999; Erceg et al. 2000). In this paper, we analyze the monetary policy implications of endogenous capital accumulation. We...

Robust control allows policymakers to formulate policies that guard against model misspecification. The principal tools used to solve robust control problems are state-space methods (see Hansen and Sargent, 2005, and Giordani and Soderlind, 2004). In this paper we show that the structural-form...

Infinitely repeated games have been used to argue that reputation can substitute for commitment in monetary policymaking. A drawback of this approach is that it implies multiple equilibria. I argue that nominal asset prices can be used as an equilibrium selection mechanism. First, I introduce...

We focus on a quantitative assessment of rigid labor markets in an environment of stable monetary policy. We ask how wages and labor market shocks feed into the inflation process and derive monetary policy implications. We structurally model matching frictions and rigid wages in line with an...

Tobin's Q exceeds one, even without any adjustment costs, for a firm that earns rents as a result of monopoly power or of decreasing returns to scale in production. Even when there are no adjustment costs and marginal Q is always equal to one, Tobin's Q is informative about the firm's growth...

This paper studies the provision of incentives to reallocate capital when managers are reluctant to relinquish control and have private information about the productivity of assets under their control. We show that when managers get private benefits from running projects substantial bonuses are...

As the millenium draws to an end, the threat posed by the Year 2000 (Y2K) problem is inducing vast private and public spending on its remediation. In this paper, we embed the Y2K problem into a dynamic general equilibrium framework. We model the Y2K problem as an anticipated, permanent loss to...

This appendix provides a detailed exposition of the computational method applied to the model of Campbell (1997). Heterogeneity in the production sector of that model implies that its prices and quantities are contnuous functions on the real line rather than scalars. The computational method...

In Lentz and Mortensen (2005) we formulate and estimate a market equilibrium model of endogenous growth through product innovation in the spirit of Klette and Kortum (2004). In this paper, we provide a quantitative solution to the planner’s problem in the modeled environment. We find that...