1. PhD candidate, Graduate School of Economics, Ryukoku University, 67 Tsukamoto-cho, Fukakusa, Fushimi-ku, Kyoto, Japan.
2. MSc candidate, College of Economics, Qufu Normal University, Yantai Road 80#, Rizhao, Shandong, China P.R.
3. MSc candidate, Research Center for Food Safety and Agricultural Green Development, Qufu Normal University, Yantai Road 80#, Rizhao, Shandong, China P.R.
4. Professor, College of Economics, Qufu Normal University, Yantai Road 80#, Rizhao, Shandong, China P.R.
5. Professor, Research Center for Food Safety and Agricultural Green Development, Qufu Normal University, Yantai Road 80#, Rizhao, Shandong, China P.R.
6. Undergraduate student, College of Economics, Qufu Normal University, Yantai Road 80#, Rizhao, Shandong, China P.R.