We investigate the competitive effects of the merger between Delta Air Lines and Northwest Airlines (2009) in the … increases of about 11 percent on overlapping routes and about 10 percent on routes which experienced a merger-induced switch of … the operating carrier. Over a longer period, however, our analysis reveals that both merger efficiencies and post-merger …

more bargaining power to the merged entity than a horizontal merger to monopoly. The model is applied to analyze strategic … merger incentives to influence entry decisions. Mergers can facilitate and deter entry. While horizontal mergers to deter …