The economics workings of the corporate income tax remain controversial. Harberger?s seminal 1962 article viewed the tax as raising the cost of capital used to produce ?corporate goods.?But ?corporate goods?can be and generally are made by non-corporate ?rms, sug- gesting that the corporate tax...

Many economic decisions can be described as an option exercise or optimal stopping problem under uncertainty. Motivated by experimental evidence such ast he Ellsberg Paradox, we follow Knight (1921) and distinguish risk from uncertainty. To capture this distinction, we adopt the multiple-priors...

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

Evidence shows that asset price bubbles typically precede financial crises and financial crises are accompanied by the collapse of bubbles. In addition, stock market booms and busts are typically associated with credit market booms and busts. The recent US housing and stock markets bubbles and...

In this paper, we establish an axiomatically founded generalized recursive smooth ambiguity model that allows for a separation among intertemporal substitution, risk aversion, and ambiguity aversion. We axiomatize this model using two approaches: the second-order act approach à la Klibanoff et...

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

We incorporate long-term defaultable corporate bonds and credit risk in a dynamic stochastic general equilibrium business cycle model. Credit risk ampli¯es aggregate tech- nology shocks. The debt-capital ratio is a new state variable and its endogenous movements provide a propagation mechanism....

We propose a novel generalized recursive smooth ambiguity model which permits a three-way separation among risk aversion, ambiguity aversion, and intertemporal substitution. We apply this utility model to a consumption-based asset-pricing model in which consumption and dividends follow hidden...

This paper embeds an oligopolistic industry structure in a real options framework in which synergy gains of horizontal mergers a rise endogenouslya nd vary stochastically over time. We find that(i) mergers are more likely in more concentrated industries; (ii) mergers are more likely inindustries...

This paper introduces endogenous credit constraints in a search model of unemployment. These constraints generate multiple equilibria supported by self-fulfilling beliefs. A stock market bubble exists through a positive feedback loop mechanism. The collapse of the bubble tightens the credit...