Since Oliver Williamson published Markets and Hierarchies in 1975 transaction cost economics (TCE) has claimed an important place in antitrust, avoiding the extreme positions of the two once reigning schools of antitrust policy. At one extreme was the “structural” school, which saw market...

This article, which was published in 1985, describes the development of a "Post-Chicago" antitrust policy. The Chicago School of antitrust analysis has made an important and lasting contribution to antitrust policy. The School has placed an emphasis on economic analysis in antitrust...

A bundled discount occurs when a seller charges less for a bundle of goods than for its components when sold separately. A characteristic of such discounting is that a rival who makes only one of the products in the bundle may have to give a larger per item discount in order to compensate the...

The decision to regulate involves the identification of markets where simple assignment of property rights is not sufficient to ensure satisfactory competitive results, usually because some type of market failure obtains. By contrast, if property rights are well defined when they are initially...

Joseph Schumpeter's vision of competition saw it as a destructive process in which effort, assets and fortunes were continuously destroyed by innovation. One possible implication is that antitrust's attention on short-run price and output issues is myopic: what seems at first glance to be a...

A price squeeze occurs when a vertically integrated firm "squeezes' a rival's margins between a high wholesale price for an essential input sold to the rival, and a low output price to consumers for whom the two firms compete. Price squeezes have been a recognized but controversial antitrust...

Many patent applications are rejected upon initial submission, but they are almost never rejected with absolute finality. Further, subsequent to filing its original application a patent applicant might wish to write an application with broader or somewhat different claims, or perhaps add claims...

Antitrust’s consumer welfare principle is accepted in some form by the entire Supreme Court and the majority of other writers. However, it means different things to different people. For example, some members of the Supreme Court can simultaneously acknowledge the antitrust consumer welfare...

The important field of antitrust and labor has gone through a profound change in orientation. For the great bulk of its history labor has been viewed as a competitive threat, and the debate over antitrust and labor was framed around whether there should be a labor “immunity” from the...