About NAKASHIMA YASUHIRO
About 東大 大学院農学生命科学研究科
About 月刊NOSAI
About agricultural management
About insurance
About agricultural policy
About income
About member(organization)
About risk management
About agriculture
About rural village
About compensation
About manager(executive)
About rice crop
About market mechanism
About Food
About bearer
About Agricultural Basic Law
About agricultural mutual benefit association
About insurance system
About Agricultural economy,agricultural management
About 収入
About 保険制度
About 農業
About 制度
About 保険