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...

Beginning in the 1880s American economists turned their attention to the law in a way unprecedented in American thought. Some legal academics in turn incorporated economics into their thinking about the law. Whether their output or its impact were great enough to warrant calling their efforts a...

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...

Where it applies, the essential facility doctrine requires a monopolist to share its quot;essential facility.quot; Since the only qualifying exclusionary practice is the refusal to share the facility itself, the doctrine comes about as close as antitrust ever does to condemning quot;no...

Vertical integration occurs when a firm does something for itself that it could otherwise procure on the market. For example, a manufacturer that opens its own stores is said to be vertically integrated into distribution. One irony of history is that both classical political economy and...

The development of marginalist, or neoclassical, economics led to a fifty-year long crisis in competition theory. Given an industrial structure with sufficient fixed costs, competition always became quot;ruinous,quot; forcing firms to cut prices to marginal cost without sufficient revenue...

During the late nineteenth and early twentieth centuries fundamental changes in economic thought revolutionized the theory of corporate finance, leading to changes in its legal regulation. The changes were massive, and this branch of financial analysis and law became virtually unrecognizable to...

A bundled discount occurs when a seller conditions a discount or rebate on the buyer's purchaser or two or more different products. Firms that produce fewer than all the good in the bundle find it difficult to compete because they must amortize the discount across a smaller range of goods. For...

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...