A vintage capital model where the firm makes decisions about whether to replace or upgrade its old capital stock with new capital is developed in this paper. The model is used to study how technological characteristics of capital affect investment behavior. In particular, it is asked how the...

We study the behavior of imitation and innovation in a dynamic general equilibrium model that captures the salient features of an information age. We study a world where innovations can be made but at a cost that reflects the type of goods. After innovation takes place, imitation is possible but...

This paper introduces a model to analyze the role of the cost of information dissemination in large markets where firms have varying degrees of intrinsic efficiency reflected in their marginal costs. Firms enter a market and discover how efficient they are. Those firms with high enough...

This paper develops a model of industry dynamics where firms compete to acquire customers over time by disseminating information about themselves in the presence of random shocks to their efficiency. The properties of the model's stationary equilibrium are related to empirical regularities on...

Electricity was born at the dawn of the last century. Households were inundated with a flood of new consumer durables. What was the impact of this consumer durable goods revolution? It is argued here that the consumer goods revolution was conducive to liberating women from the home. To analyse...