The 2010 US Horizontal Merger Guidelines offer a substantially modified framework for evaluating coordinated effects. Can we rationally anticipate that this will stimulate the same boom in the antitrust economics of coordinated merger effects as that spurred by the unilateral effects section in...

In his recent paper entitled “How Loyalty Discounts Can Perversely Discourage Discounting,” Professor Einer Elhauge argues that exclusive contracts with loyalty discounts offered by a single incumbent seller can create anticompetitive effects in a broad range of settings. In this comment we...

When the Riegle-Neal Interstate Banking and Branching Efficiency Act went into effect in June 1997, it marked the final stage of a quarter-century-long effort to relax geographic restrictions on banks. This article examines an earlier stage of the deregulatory process-the actions taken by the...

This paper shows that bank performance improves significantly after restrictions on bank expansion are lifted. We find that operating costs and loan losses decrease sharply after states permit statewide branching and, to a lesser extent, after states allow interstate banking. The improvements...

The consolidation rate in the Federal Reserve's Second District banking markets generally outpaced the national average between 1989 and 1994. Nevertheless, these banking markets remain relatively unconcentrated, with midsized banks increasing their market share at the expense of large banks

The academic literature on loyalty discounts and exclusive dealing demonstrates that the welfare effects of these practices are ambiguous and that market details determine the direction of the effect. Assaf Eilat, Jith Jayaratne, Janusz Ordover (Compass Lexecon) & Greg Shaffer (University of...

This paper shows that bank performance improves significantly after restrictions on bank expansion are lifted. We find that operating costs and loan losses decrease sharply after states permit statewide branching and, to a lesser extent, after states allow interstate banking. The improvements...

Bank branches in New York City tend to be spatially clustered. For instance, of the 221 branches that were opened in New York City between July, 1990 and June, 1995, 181 (or 82 percent) were opened in census tracts that already had at least one other branch. A number of recent theoretical papers...

When the Riegle-Neal Interstate Banking and Branching Efficiency Act went into effect in June 1997, it marked the final stage of a quarter-century-long effort to relax geographic restrictions on banks. This article examines an earlier stage of the deregulatory process-the actions taken by the...