@techreport{NBERw13730,
 title = "How Costly Is Hospital Quality? A Revealed-Preference Approach",
 author = "John A. Romley and Dana Goldman",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13730",
 year = "2008",
 month = "January",
 URL = "http://www.nber.org/papers/w13730",
}