In private enforcement systems such as the one for patents, remedies perform the “public” function of determining the optimal amount of protection and deterrence. If every patent were properly granted and had just the right scope to incentivize innovation, then strict enforcement and harsh...

A tying arrangement is a seller’s requirement that a customer may purchase its “tying” product only by taking its “tied” product. In a variable proportion tie the purchaser can vary the amount of the tied product. For example, a customer might purchase a single printer, but either a...

"Separation of ownership and control" is a phrase whose history will forever be associated with Adolf A. Berle and Gardiner C. Means' The Modern Corporation and Private Property (1932), as well as with Institutionalist economics, Legal Realism, and the New Deal. Within that milieu the large...

This historical overview examines the relationship between antitrust policy and intellectual property in the United States since 1890. Over most of this history, judges imagined far greater conflicts between antitrust policy and intellectual property rights than actually existed, or else relied...

In "The Problem of Social Cost" Ronald Coase was highly critical of the work of Cambridge University Economics Professor Arthur Cecil Pigou, presenting him as a radical government interventionist. In later work Coase's critique of Pigou became even more strident. In fact, however, Pigou's...

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...

The welfare state could not function without judgments about how well off its citizens are. For example, governments devise progressive income taxes, which are designed to capture more wealth from the well off and less from the impecunious. These policies presume an ability to take a manageable...

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...