1. Assistant Professor, Dept. of Bioenvironmental Systems Engineering, National Taiwan Univ., No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan (corresponding author).
2. Associate Research Fellow, Taiwan Institute of Economic Research, Research Division 1, 7F, No. 16–8 Dehuei St., Jhongshan District, Taipei 104, Taiwan.
3. Assistant Research Fellow, Taiwan Institute of Economic Research, Research Division 1, 7F, No. 16–8 Dehuei St., Jhongshan District, Taipei 104, Taiwan.
4. Associate Research Fellow, Institute of Nuclear Energy Research, Atomic Energy Council, Taiwan, No. 1000, Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan County 32546, Taiwan.