1. Department of Economics, Hanyang University ERICA Campus, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea
2. Department of Economics, Indian Institute of Foreign Trade (IIFT), 1583, Chowbaga Canal Side Rd., Madurdaha, Chowbaga, Kolkata 700100, India
3. School of Accounting and Finance, Hong Kong Polytechnic University, Hong Kong