Najibullah Hassanzoy Kyushu University   Kyushu University Fukuoka-shi, Higashi-ku, Hakozaki 6-10-1 Building No. 1, Room No. 601 Fukuoka, Kyushu 812-8581 Japan   hassanzoyn@gmail.com   http://worldfood.apionet.or.jp/           JEL Areas: Q : Agricultural and Natural Resource Economics Q0 : Agricultural and Natural Resource Economics; Environmental and Ecological Economics: General