國家A缺少商品x需要從國家B進口時，A應該希望關稅低不妨礙trade. B需要商品y從A進口，B對y進口關稅不會太高。

來源: valore 於 2025-04-02 15:54:58 [舊帖] [給我悄悄話] 本文已被閱讀：次

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