About NIIJIMA HIROKI
About aging society with a falling birthrate
About intermediate and mountainous area
About supermarket
About buying behavior
About POS system
About operational control
About optimization
About Marketing
About distribution (transport)
About profit
About business management
About modification
About POS
About operation and management
About aging
About earnings
About 住民組織
About super-aging society
About delivery
About Land use in general,zoning
About Marketing research,advertisement
About Other methods of operations research
About Management engineering in general
About 高齢社会
About 中山間地域
About 展開
About 日食
About チェーン