Tatiana V. Sokolova National Research University ‘Higher School of Economics', Moscow, Russia   Office 4320, 26, Shabolovka street Moscow, 119049 Russia   sokol-t@yandex.ru   http://fmlab.hse.ru           JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) G3 : Corporate Finance and Governance: General