Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control

In evaluating the benefits of an infrastructure project, it is essential to consider who is benefiting from the project and where benefits are located. However, there is no established way to accurately determine the latter. To fill this methodological gap, this study proposes an approach for the ex...

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Main Authors: Takara Kunimi, Hajime Seya
Format: Article
Language:English
Published: University of Minnesota Libraries Publishing 2021-01-01
Series:Journal of Transport and Land Use
Online Access:https://www.jtlu.org/index.php/jtlu/article/view/1784
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author Takara Kunimi
Hajime Seya
author_facet Takara Kunimi
Hajime Seya
author_sort Takara Kunimi
collection DOAJ
description In evaluating the benefits of an infrastructure project, it is essential to consider who is benefiting from the project and where benefits are located. However, there is no established way to accurately determine the latter. To fill this methodological gap, this study proposes an approach for the ex-post identification of the geographical extent of an area benefiting from a transportation project based on a generalized synthetic control method. Specifically, it allows comparing multiple treatment units with their counterfactuals in a single run—changes in land prices (actual outcome) at each treated site are compared to the counterfactual outcome, and the individual (i.e., unit-level) treatment effect on the treated site is then estimated. This approach is empirically applied to a large-scale Japanese heavy railway, the Tsukuba Express line project. Our approach enables the detection of 1) the complicated spatial shape of benefit incidence; 2) negative spillovers; and 3) the increase in options (train routes), typically not considered in a benefit evaluation system based on the hedonic approach, but which can be capitalized into land prices.
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spelling doaj-art-65334d25a4ed4b2199b2291e71592ccd2025-08-20T03:09:59ZengUniversity of Minnesota Libraries PublishingJournal of Transport and Land Use1938-78492021-01-0114110.5198/jtlu.2021.1784Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic controlTakara KunimiHajime Seya0Kobe UniversityIn evaluating the benefits of an infrastructure project, it is essential to consider who is benefiting from the project and where benefits are located. However, there is no established way to accurately determine the latter. To fill this methodological gap, this study proposes an approach for the ex-post identification of the geographical extent of an area benefiting from a transportation project based on a generalized synthetic control method. Specifically, it allows comparing multiple treatment units with their counterfactuals in a single run—changes in land prices (actual outcome) at each treated site are compared to the counterfactual outcome, and the individual (i.e., unit-level) treatment effect on the treated site is then estimated. This approach is empirically applied to a large-scale Japanese heavy railway, the Tsukuba Express line project. Our approach enables the detection of 1) the complicated spatial shape of benefit incidence; 2) negative spillovers; and 3) the increase in options (train routes), typically not considered in a benefit evaluation system based on the hedonic approach, but which can be capitalized into land prices.https://www.jtlu.org/index.php/jtlu/article/view/1784
spellingShingle Takara Kunimi
Hajime Seya
Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control
Journal of Transport and Land Use
title Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control
title_full Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control
title_fullStr Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control
title_full_unstemmed Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control
title_short Identification of the geographical extent of an area benefiting from a transportation project: A generalized synthetic control
title_sort identification of the geographical extent of an area benefiting from a transportation project a generalized synthetic control
url https://www.jtlu.org/index.php/jtlu/article/view/1784
work_keys_str_mv AT takarakunimi identificationofthegeographicalextentofanareabenefitingfromatransportationprojectageneralizedsyntheticcontrol
AT hajimeseya identificationofthegeographicalextentofanareabenefitingfromatransportationprojectageneralizedsyntheticcontrol