本文以兩國三地模型為基礎，並設立了一個三階段賽局，觀察生產汙染性商品的廠商為了符合第三國政府訂定之環境標準而投入環保研發技術為例，在各國政府補貼該國廠商的環保研發技術投入時，將如何影響廠商產量、利潤及環境改善等相關項目。研究結果顯示：當各國廠商之環保研發技術投入增加時，該國廠商的產量、總產量上升，均衡價格下降；當政府補貼增加時，對於各國的環保研發技術投入及利潤也都具有正向效果，唯總汙染效果無法確定。若對於總汙染的影響為負，政府的最適政策為補貼；若對於總汙染的影響為正，則需同時考慮利潤效果的影響。若利潤效果的正向影響大於總汙染效果，此時最適政策亦為補貼；反之，若利潤效果之正向影響小於總汙染效果，則此時政府最適政策將轉變為課稅。

第一章 緒論 1
第一節 前言 1
第二節 研究動機與目的 4
第二章 文獻回顧 5
第一節 環境政策與貿易政策 5
第二節 技術研發投資與外溢 6
第三節 汙染稅與補貼 8
第三章 基本模型 9
第四章 綜合分析 11
第一節 廠商決定最適產量 11
第二節 兩國廠商決定ER&D投入 12
第三節 政府決定最適補貼 13
第四節 比較靜態分析 14
第五節 環保研發投資誘因 24
第六節 環保研發投入政策 25
第五章 結論 26
參考文獻 28

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