@techreport{NBERw13796,
 title = "How Much Value Do Real Estate Brokers Add? A Case Study",
 author = "B. Douglas Bernheim and Jonathan Meer",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "13796",
 year = "2008",
 month = "February",
 URL = "http://www.nber.org/papers/w13796",
}