해운산업 전략적 제휴를 위한 슬롯교환모형

Abstract

Since the mid-2000s, the global shipping industry has been unable to escape from the vicious circle of the long-term depression. In order to get rid of the vicious cycle of shipping industry, shipping companies around the world are avoiding excessive competition and plans to cooperate to reduce costs. The most widely used method among these alliances is the slot exchange method. Using the slot exchange method can reduce the competition and increase profitability by increasing the utilization rate of the vessels. As a result, it is possible to reduce the cost and increase the profit of the affiliated companies.BR It is important to pursue maximizing profits or minimizing costs from the perspective of all affiliates, rather than attempting to maximize the benefits of each other. Recently, several studies have been made to apply optimization technique using mathematical model of slot exchange method. However, the researches so far have limited the practical application because they deal with only the alliance model between two companies due to the complexity of the problem. The purpose of this study is to develop a mathematical model for three or more affiliated companies and to apply the problem to the sample in order to find out the applicability of the problem. And this study also proposes how to distribute the cost reduction effect of partnership rationally among the affiliated companies using the Shapley value.