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ID 46424
本文ファイル
著者
Ahmed, Abu Nur Rashed
Yoshida, Yuichiro 大学院国際協力研究科 広大研究者総覧
Arnott, Richard James
キーワード
Optimal transportation network
Land use models
JEL codes: R14
JEL codes: R42
JEL codes: R52
NDC
運輸・交通
抄録(英)
Ignoring distortions, the social benefit from an urban transportation improvement is typically measured as the reduction in transportation costs at a particular location, holding travel fixed at the pre-improvement level, summed over all locations. The result has been seen in specific urban transportation models, however, not formally derived as a general result. Through a transformation of variables first employed in Arnott and Stiglitz (1981), this paper adopts a di↵erent perspective to generalize the result. From this perspective, the benefits of a transportation improvement derive from the increase in the residential land area of better accessibility that the improvement brings about. The generalized result tells that a transportation improvement changes the land area at varying levels of accessibility, as well as land rents throughout the city, however, the social benefit of the transportation improvement is then measured as the increase in aggregate di↵erential land rents due to a change in land area at each level of accessibility, rather than that due to a change in land rent, by holding the function relating land rent to accessibility at its pre-improvement levels. This paper presents this result by using a basic monocentric model as a vehicle of demonstration and then shows that the result generalizes beyond the geographic features of the city, to a broad class of first-best urban economies with multiple transportation modes and employment centers and multiple household groups.
掲載誌名
IDEC DP2 Series
8巻
3号
開始ページ
1
終了ページ
16
出版年月日
2018-07-10
出版者
広島大学大学院国際協力研究科
言語
英語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
国際協力研究科
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