* John Connor describes and evaluates the results of his extensive survey of reports of cartel overcharges.

* Dennis Weisman models the price effects of mergers that not only increase concentration in the relevant market but also increase the merged firms' participation in other, complementary markets.

* Malcolm Coate and Mark Williams develop a superior method for calculating critical loss in markets that are relatively homogenous and competitive premerger.

* Zhiqi Chen surveys recent developments in economic theories of buyer power...