Muzaffarjon Ahunov Woosong University   W19, Room 228 Woosong University, 171 Dongdaejeon-ro Jayang-Dong, Dong-gu Daejeon, 34606 South Korea   mahunov@wsu.ac.kr   https://www.endicott.ac.kr/page/index.jsp?code=endicott040102           JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) G2 : Financial Institutions and Services: General