Document Type


Publication Date



In a simple model I show consumer surplus can increase after competing sellers consummate a profitable merger that generates no cost savings. This finding contrasts sharply with the conventional wisdom that horizontal mergers without efficiencies must enhance sellers’ market power to be profitable, thereby harming buyers. The model fits industries in which individual buyers conduct distinct procurement contests for which sellers incur costs to participate, say to assess their product’s fit with the buyer’s preferences. Mergers benefit buyers by inducing stronger contest-level entry, echoing common claims from merging parties that their merger is beneficial because it creates a stronger competitor.


Working Paper 17-07



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.