Yu chi Sung Department of Leisure & Tourism Management, Shu-Te University, Kaohsiung, Taiwan   No,59, Hun Shan Rd., Hun Shan Village, Yen Chau, Kaohsiung County,Taiwan, R.O.C. Kaohsiung, Taiwan   yuchi@stu.edu.tw             JEL Areas: O3 : Technological Change; Research and Development: General C8 : Data Collection and Data Estimation Methodology; Computer Programs: General