This paper poses and tests a new model of the location of plants that process ubiquitously supplied ‘von Thünen’ inputs such as raw farm output. The new model rationalizes why agro-industry is city-located but resource-oriented. It demonstrates the significance of relative transport costs in agroindustry location. Furthermore, we present a unprecedented direct test/empirical confirmation of est...

For a given network let P and N denote the set of all points and the set of all nodes respectively. Let G and T denote a cyclic network and a tree network respectively and let m denote the number of centers available. The categorization scheme {'/{"/m/{ } , where the first and second cells refer to the possible locations of centers and demand generating points respectively, provides for compact...

Meyer (1987) extended the theory of mean-variance criterion to include the comparison among distributions that differ only by location and scale parameters and to include general utility functions with only convexity or concavity restrictions. In this paper, we make some comments on Meyer’s paper and extend the results from Tobin (1958) that the indifference curve is convex upwards for risk ave...

An extended star is a tree which has only one vertex with degree larger than two. The -center problem in a graph  asks to find a subset  of the vertices of  of cardinality  such that the maximum weighted distances from  to all vertices is minimized. In this paper we consider the -center problem on the unweighted extended stars, and present some properties to find solution.

In order to solve the design problem of electric vehicle charging station distribution, based on consideration user and investor costs, this paper establishes a mixed integer model for site selection game theory ideas. Among them, cost is determined by two indicators, namely, time users reach wait in line, while construction daily operation maintenance cost. established model, hierarchical anal...