EFFECTS OF SYMMETRY ON PARADOXICAL COST DEGRADATION IN A NASH NON-COOPERATIVE NETWORK SYSTEM

摘要

This paper interprets globalization as increased transportation capacity in a system, and investigates its effects when the system is regarded as a non-cooperative game. It is shown that there exist cases where increased capacity degrades the benefits to all the players. Further, complete symmetry may be harmful in the sense that our measure of degradation becomes worst, where our measure is the minimum of the ratios of the cost degradation for all the players. The system considered consists of two locations each of which has a facility that can produce a commodity, a local fixed demand for the commodity, and a player.