Kazuo Yamada Kyoto University   Yoshida Honmachi, Sakyo-ku Kyoto-city, 606-8317 Japan   yamada.kazuo.7z@kyoto-u.ac.jp   https://www.gsm.kyoto-u.ac.jp/en/faculty/169205/?doing_wp_cron=1788898562.3152060508728027343750           JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) G3 : Corporate Finance and Governance: General