This paper analyzes optimal procurement mechanisms in a setting where the procurement agency has incomplete information concerning the firms’ cost functions and cares about quality as well as price. Low type firms are cheaper than high type firms in providing low quality but more expensive...

Theoretical IO models of horizontal mergers and acquisitions make the critical assumption of efficiency gains.Without efficiency gains, these models predict either that mergers are not profitable or that mergers are welfare reducing.A problem here is the empirical observation that on average...