Gizem Korkmaz European University Institute   Villa San Paolo Via della Piazzuola 43 Firenze, 50133 Italy   gizem.korkmaz@eui.eu   http://www.eui.eu/Personal/Researchers/GizemKorkmaz/           JEL Areas: L1 : Market Structure, Firm Strategy, and Market Performance: General L0 : Industrial Organization: General