We develop a model of an industry with many heterogeneous firms that face both financing constraints and irreversibility constraints. The financing constraint implies that firms cannot borrow unless the debt is secured by collateral; the irreversibility constraint that they can only sell their...

A number of studies show that entrepreneurial households face a large amount of unvidersifiable risk. This paper studies the effects of this risk on the relationship between uncertainty, innovation and investment dynamics. In the first part of the paper we develop a simple model of a risk averse...