本文建構一個內生成長模型，從長期經濟成長與福利的角度，討論政府的最適修繕。本文發現最適修繕與公共資本佔私人資本比例和修繕對資本折舊強度呈正向相關；而與私人生產技術和生產外部性呈負向相關。

This paper studies the optimal government maintenance from the perspective of long-run growth and welfare in an endogenous growth model. We find that optimal government maintenance correlates negatively with the productivity of public investment and private productivity coefficient, but positively with the ratio of public capital to private capital and the strength of government maintenance on capital depreciation.

目  錄
第一章  緒論	1
一、  前言	1
二、  論文架構	2
第二章  文獻回顧	3

第三章  理論模型	5
一、  家計單位	5
二、  政府部門	7
三、  長期均衡	8
第四章  經濟成長與福利	11
一、  政府政策與經濟成長	11
        (1) 政府消費性支出與經濟成長	11
      (2) 政府稅收與經濟成長	12
        (3) 政府修繕與經濟成長	12
二、  經濟成長極大之最適修繕	13
(1) 政府修繕與公共、實質資本相對比例	13
(2) 最適修繕	15
第五章  社會福利與修繕	17
  一、 政府修繕政策對社會福利的影響	17
  二、 社會福利極大之最適修繕	18
第六章  結論	21

參考文獻 	22
圖目錄

圖一 : 修繕與折舊率間的關係	9
圖二 : 長期均衡存在	10
圖三 : 修繕比例變動對公共資本與實質資本相對比例的影響	14
圖四 : 修繕比例對公共資本與實質資本相對比例的關係	15

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