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Structure analysis of issues regarding the successor shortage in fishery communities and its countermeasures (example analysis of Tomamae Town, Hokkaido, Japan)

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  • This study addresses the factors that are causing a shortage of successors in fishery and possible countermeasures. The interrelating structure of these factors was clarified using the DEMATEL (DEcision MAking Trial and Evaluation Laboratory) method and the effectiveness of the countermeasures was evaluated. Problem-causing factors were also hierarchized using ISM (Interpretive Structural Modeling). Furthermore, validity of these methods for analyzing the issue of lack of successors was studied through a comparison of the interrelating structure of the factors found by the DEMATEL method and the hierarchical structure found by ISM. Factors causing problems of successors in fishery were divided into three categories - industry, living and culture and self-actualization - and the interaction among the factors was analyzed using the DEMATEL method. Next, as a paired comparison with the DEMATEL method, problem-causing factors were hierarchized by ISM, using the direct influence matrix developed from the results of the DEMATEL method analysis. Countermeasures for the factors causing the shortage of successors in fishery were then extracted, and the effectiveness of those countermeasures was evaluated from the viewpoint of comprehensive problem-solving effects taking into consideration the total influence coefficient obtained by the DEMATEL method. The problem structure and effectiveness of countermeasures clarified by the above methods were fed back to the subjects for adjusted evaluation.
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  • Furuya, Atsumi, Izumi Seki, Sadayuki Oka, Akira Nagano. 2004. Structure analysis of issues regarding the successor shortage in fishery communities and its countermeasures (example analysis of Tomamae Town, Hokkaido, Japan). Peer Review: No. In: Proceedings of the Twelfth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 20-30, 2004, Tokyo, Japan: What are Responsible Fisheries? Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2004. CD ROM. ISBN 0-9763432-0-7
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