1. Graduate School of Economics, Ryukoku University, Kyoto, Japan
2. College of Economics and Management, Northeast Agricultural University Heilongjiang, Harbin, Heilongjiang Province, China
3. College of Economics, Qufu Normal University, Shandong, China
4. Affiliated with Research Center for Food Safety and Agricultural Green Development, Qufu Normal University, Shandong, China
5. Facultat d’Economia i Empresa, Edifici B, Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain
6. Institute of Marine Development of Ocean University of China,Qingdao, Shandong Province, China