I estimate the price and productivity effects of horizontal mergers in the ready-mix concrete industry using plant and … firm-level data from the US Census Bureau. Horizontal mergers involving plants in close proximity are associated with price … relationship between productivity and prices, the rate at which productivity reduces price is modest and the effects of increased …

, Farrell and Shapiro proposed a new merger screen known as Upward Price Pressure. This article discusses the advantages and … shares as an early preliminary screen in evaluating the potential for anticompetitive effects of a proposed merger. Recently … disadvantages of this screen, contrasts it to more complicated full merger simulations, and ultimately suggests a merger simulation …