Soushi Suzuki, Professor Dr., Hokkai-Gakuen University, soushi-s@lst.hokkai-s-u.ac.jp, Department of Life Science and Technology, Hokkai-Gakuen University, 1-1 South 26 West 11, Chuo-ku, 0640926, Sapporo, Japan
Peter Nijkamp, Professor Dr., VU University Amsterdam, p.nijkamp@vu.nl, Department of Spatial Economics, VU University Amsterdam, De Boelelaan 1105, 1081HV, Amsterdam, The Netherlands