This paper empirically evaluates the price effects of the merger of two major book retail chains in the UK: Waterstone’s and Ottakar’s. We employ differences-in-differences techniques and use a rich dataset containing monthly scanner data information on a sample of 200 books sold in 60...

Health systems that use market competition to increase efficiency rely on competition agencies to protect competition. The institutional expectation is that competition agencies protect the effective functioning of market-based health systems by carrying out the surveillance duties bestowed upon...