In 1989, the Japanese government introduced auctions for the sale of 10-year government bonds, replacing the legal cartel syndicates that had previously coordinated prices. Using this policy change as a natural experiment, this paper uses a difference-in-differences (DID) methodology to assess...

There have been a number of studies attempting to quantify the impact of cartels and mergers on prices. The state of the art of empirical analysis related to antitrust is best illustrated by the research of John Connor and John Kwoka. Connor summarizes the existing empirical research that...

In this journal, James Langenfeld critically reviewed four of the present authors' articles that analyze the size of cartel overcharges and their antitrust policy implications. In this comment, we explain why we believe Langenfeld errs in his criticism of our work. In particular, this comment...

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