A GUPPI Revolution in the EU?
The new U.S. Horizontal Merger Guidelines, issued in August 2010, introduce the so-called GUPPI test, the Gross Upward Pricing Pressure Index. According to the U.S. Guidelines, “[a]dverse unilateral price effects can arise when the merger gives the merged entity an incentive to raise the price of a product previously sold by one merging firm and…