Jung-hyun Ahn Rouen Business School   Rouen Business School Department of Economics and Finance 1, rue du Maréchal Juin - BP 215 Mont-Saint-Aignan Cedex, 76825 France   jung-hyun.ahn@rouenbs.fr             JEL Areas: G2 : Financial Institutions and Services: General L1 : Market Structure, Firm Strategy, and Market Performance: General