The Investigation of a Short Sell Ban in a Selected Market

Abstract

The hypothesis of overvaluation argues that short sell restrictions are reflected in security prices by their over valuation. In the situation when short sell is prohibited or expansive pessimistic investors expectation are not reflected in security prices. In the paper is examine impact of short sell ban in the price of banking and other financial institution stocks in France in the period Aug. 11, 2011 to Feb. 13, 2012. According to ARs and CARs the hypothesis of over valuation is not confirmed getting mixed results based on the market model and the adjusted market model as well.