In this chapter our attention turns to horizontal merger policy. The Sherman Act`s prohibition on "contracts … reasoning, horizontal merger policy has become much more permissive. During this same period, there has also been substantial …

This paper uses merger simulations to predict post-merger prices for six major airline mergers from the 1980's, and … compares these predictions with actual post-merger prices. Simulations which incorporate varying degrees of post-merger … of the post-merger price change, but should not be expected to account for all of it. Changes in marginal cost or firm …