@techreport{NBERw12430, title = "Employment and Adverse Selection in Health Insurance", author = "Jayanta Bhattacharya and William B. Vogt", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "12430", year = "2006", month = "August", URL = "http://www.nber.org/papers/w12430", }