Feyyaz Zeren Sakarya University   Sakarya University, İŞletme Fakültesi, SAKARYA Sakarya, 54187 Turkey   feyyazzeren@outlook.com   www.fzeren.sakarya.edu.tr/en           JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) C4 : Econometric and Statistical Methods: Special Topics