| 英文摘要 |
The present study applies time-series processes to analyze the movements of Japanese frozen Big-Eye tuna and frozen Yellow-Fin tuna prices according to specific evidences on Granger causal relationships between prices and quantity. The test results conclude that both Japanese domestic supply and import-from-Taiwan are useful leading indicator of Japanese Big-Eye tuna price. However, Japanese domestic supply is the only leading indicator of Yellow-Fin tuna prices under the situation of Taiwan being a major source of Japanese market. Moreover, estimation results show that the price series of tuna can be more adequately explained by incorporating quantity variables. |
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