Title: Analyzing the welfare impacts of full-line forcing contracts
Description: "Theoretical investigations have examined both anti-competitive and efficiency-inducing rationales for vertical bundling, making empirical evidence important to understanding its welfare implications.  We use an extensive dataset on full-line forcing contracts between movie distributors and video retailers to empirically measure the impact of vertical bundling on welfare.  We identify and measure three primary effects of fullline forcing contracts: market coverage, leverage, and efficiency.  We find that bundling increases market coverage and efficiency, but has little impact on one distributor gaining leverage over another.  As a result, we estimate that full-line forcing contracts increased consumer and producer surplus in this application"--National Bureau of Economic Research web site.