Survival conditions ensure the presence of consumptions that cost less than the total contingent income of agents in general equilibrium models. These conditions are generally fulfilled in competitive equilibrium. This paper shows the existence of equilibrium for incomplete-market economies...

A dynamic pure-exchange general equilibrium model with uncertainty is studied. Fundamentals are supposed to depend continuously on states of nature. It is shown that: 1. if financial markets are complete, then asset prices vary continuously with states of nature, and; 2. if financial markets are...

We analyze the firm-level and aggregate consequences of equity market imperfections in the form of noisy information aggregation for corporate risk-taking and investment. Market imperfections cause controlling shareholders to invest too much in upside risks and too little in downside risks in an...

In this paper, we conduct an analysis of the implications of capital controls for financial stability. We study a financial transaction (Tobin) tax applicable to cross-border capital flows in a multi-good, multi-country dynamic equilibrium model with incomplete financial markets and...

This paper shows that a competitive equilibrium exists in an exchange economy with incomplete financial markets where redundant assets are traded and the asset trading of each agent is subject to endogenous portfolio constraints. The set of budget-feasible portfolios need not be bounded in the...

In this paper, we conduct an analysis of the implications of capital controls for financial stability. We study a financial transaction (Tobin) tax applicable to cross-border capital flows in a multi-good, multi-country dynamic equilibrium model with incomplete financial markets and...

Empirical evidence shows that entrepreneurs hold a large fraction of wealth, have higher saving rates than workers, and face substantial uninsurable entrepreneurial and investment risks. This paper constructs a heterogeneous-agent general equilibrium model with uninsurable entrepreneurial risk...