A model of heterogeneous firms with multiple products and two production factors (labor and capital) is used to study how trade liberalization affects firms' choices through both product and factor markets. Trade liberalization is shown to always redistribute capital toward more efficient firms...

A model of heterogeneous firms with variety-specific fixed costs is developed and analyzed to study how multiproduct firms respond to globalization. In contrast with most existing models, the analysis demonstrates that more-productive firms may expand their product scope, which in turn may push...

Due to the quick advancement of science and technology, the services sector which has a high content of knowledge and technology has experienced globally expeditious development in the past decade. Development in general and the growth of Knowledge Intensive Business Services (KIBS) such as...

This paper examines the choice of commercial breaks by a television network in a monopoly setup. It is assumed that viewers dislike commercials, while the network seeks to maximize the total audience for these commercials through its choice of the number, length, and timing of commercial breaks....

A monopolist who originally charges a uniform price across all markets may switch to discriminatory pricing upon the entry of a competitor. As a result, intensified competition may lead to more dispersed prices as well as higher prices for some or all consumers.

In a general equilibrium framework, it is known that imitation may actually promote innovation (Aghion et al., 1997). The same effect is demonstrated with a standard oligopoly model in which one firm has the ability to develop technologies while all other firms imitate and obtain a fraction of...

The profitability of horizontal mergers is investigated in a situation in which firms face a production shock and therefore are uncertain about their future costs. I show that, due to production rationalization, small-scale mergers can be profitable if the uncertainty is large. The efficiency...

This paper presents a study of endogenous horizontal mergers under cost uncertainty. Before knowing the exact values of their costs, firms decide sequentially whether or not to join a merger. After the merger decision is made, uncertainty is resolved and firms engage in Cournot competition with...