@techreport{NBERw10659, title = "Go Down Fighting: Short Sellers vs. Firms", author = "Owen Lamont", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "10659", year = "2004", month = "July", URL = "http://www.nber.org/papers/w10659", abstract = {I study battles between short sellers and firms. Firms use a variety of methods to impede short selling, including legal threats, investigations, lawsuits, and various technical actions intended to create a short squeeze. These actions create short sale constraints. Consistent with the hypothesis that short sale constraints allow stocks to be overpriced, firms taking anti-shorting actions have in the subsequent year very low abnormal returns of about -2 percent per month.}, }