Hung-Hao Chang National Taiwan University   No 1, Roosevelt Rd, Sec 4 Taipei, 10617 Taiwan   hunghaochang@ntu.edu.tw   http://homepage.ntu.edu.tw/~hunghaochang/       Primary Research Focus: Law Economic and Antitrust, Food Consumption and Health, Agricultural and Environmental Economics   JEL Areas: Q1 : Agriculture: General O3 : Technological Change; Research and Development: General