Abstract
This paper aims at solving optimization problems for locating distribution centers as a first step of investigation of social distribution problems, which are actually presented in some company. We construct a multiechelon model based on transportation costs for selecting its location optimally by considering goods in stock, labor costs spent at the centers, rent on the centers and charge for management. In future, we try to develop this model to a more general one suited to optimization problems of social hub such as central hub and local hub in a broad area and investigate a construction of optimal hub system as a social infra.
