While a start-up firm waits for its sales to materialize, it is a "pre-producer". This waiting period represents a special kind of entry cost. This paper studies how such entry costs influence the several stages of an industry's life cycle. Assuming that the production hazard is rising in the...

A satisfactory account of the postwar growth experience of the United States should be able to come to terms with the following three facts: -Since the early 1970's there has been a slump in the advance of productivity. -The price of new equipment has fallen steadily over the postwar period....

We study an economy in which firms use labor and various vintages of capital in a CES production function for the final good. We explicitly solve for the investment in capital of a given vintage as a function of its age, and for the resulting stocks of capital. We show that for reasonable...