Retrospective analyses of hospital mergers may be uniquely valuable because they speak directly to two important issues - the methods used for delineating relevant geographic markets in hospital merger analysis, and the implications of not-for-profit status on post-merger hospital pricing - that...

We present empirical analyses of the effects of two hospital mergers - both occurring in the northern suburbs of Chicago in 2000 - on the pre- and post-merger prices negotiated with commercial health insurers. Using difference-in-differences methodology and data on actual transaction prices,...