Over the last decade, liner shipping carriers have entered into operational relatienships known as ocean shipping alliances. It allows carriers to aggregate cargoes and re-arrange vessels so that they are able to increase the revenue and reduce the cost. But it is also observed that some carriers would not join the shipping alliances for various reasons, This study aims to identify the effect when a new company tends to join an existing alliance by the use ofmodified Shapley Value, First, some

more »

... elated works and the ocean shipping alliances are reviewed, Next, the Shapley Vleilue is briefiy introduced and a modified Shapley value, mentioned as "net value" is developed. Then, the problem of entry into an existing alliance is modeled as an n-player game, At last, a case study ls presented and the authors reach the conclusions that relatively small caniers tend to be accepted by the aL]iances while large carriers weuld not.