The purpose of this study is to analyze both characteristics of the linkage between Pusan and Fukuoka and factors affecting it, through an analysis of business travel activities of firms in Pusan, based on the interviews with 62 firms in Pusan which export food and clothes to Japan. The results are summarized as follows; 1. The business travels from Pusan to Japanese cities consist of international flight from Pusan and railway travels within Japan. A case study of one company shows that

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... cy of international flight to Fukuoka is higher than business visits and the volumes of dealing there. 2. An anova analysis revealed that Fukuoka-oriented firms in terms of business transactions use Fukuoka airport more frequently than other Tokyo-Osaka-or Nagoyaoriented firms. 3. A cluster analysis of the assessment of convenience of Fukuoka international airport identified four types, and Fukuoka is highly appreciated in each type. 4. According to multiple regression analysis between the assessment of convenience and flights to Fukuoka revealed that, the major factors for the firms with plural destinations in Japan including Fukuoka to use Fukuoka international airport are: flight time from Pusan to Fukuoka; movement from international airport to civic center; and transfer to railway.