Wataru Nozawa Kyushu University   1023 West-2 Motooka 744 Fukuoka, Fukuoka 8190395 Japan   wnwnwnwnwnwn@gmail.com   https://sites.google.com/site/wxn108/research           JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) E4 : Money and Interest Rates: General