Stock price bubbles are often on productive assets and occur in a sector of the economy. In addition, their occurence is often accompanied by credit booms. Incorporating these features, we provide a two-sector endogenous growth model with credit-driven stock price bubbles. Bubbles have a credit...

equilibria in models with heterogeneous agents and market frictions. This method is based upon a convergent operator over an expanded set of state variables. The fixed point of this operator defines the set of all Markovian equilibria. We study approximation properties of the operator as well as...

This paper provides an explanation for momentum and reversal in stock returns within a rational expectations framework in which investors are heterogeneous in their information and investment opportunities. We assume that informed agents privately receive advance information about company...

This paper develops a real options model to study the interaction between industry structure and takeover activity. In an asymmetric industry equilibrium, firms have an endogenous incentive to merge when restructuring decisions are motivated by operating and strategic benefits. The model...

We provide an infinite-horizon model of a production economy with bubbles, in which firms meet stochastic investment opportunties and face credit constraints. Capital is not only an input for production, but also serves as collateral. We show that bubbles on this reproducible asset may arise,...

We present an estimated DSGE model of stock market bubbles and business cycles using Bayesian methods. Bubbles emerge through a positive feedback loop mechanism supported by self-fulfilling beliefs. We identify a sentiment shock which drives the movements of bubbles and is transmitted to the...

This paper extends Woodford's (2010) approach to the robustly monetary policy to a general linear quadratic framwork. We provide algorithms to solve for a time-invariant linear robustly optimal policy from a timeless perspective and for a time-invariant linear Markov perfect equilibrium under...

What is the long-run effect of dividend taxation on aggregate capital accumulation? To address this question, we build a dynamic general equilibrium model in which there is a continuum of firms subject to idiosyncratic productivity shocks. We show that at any point in time, a firm may lie in one...

In the presence of both convex and nonconvex capital adjustment costs in a dynamic general equilibrium model, corporate tax policy generates both intensive and extensive margin effects via the channel of marginal Q. Its impact is determined largely by the strength of the extensive margin effect,...

We study a production economy with regime switching in the conditional mean and volatility of productivity growth. The representative agent has generalized disappointment aversion (GDA) preferences. We show that volatility risk in productivity growth carries a positive and sizable risk premium...