Research

Refereed Publications
  • Okamoto, Chigusa and Yasuhiro Sato (2021) “Impacts of high-speed rail construction on land prices in urban agglomerations: Evidence from Kyushu in Japan,” Journal of Asian Economics, 76, 101364. [link]
    ※この論文の解説記事を週刊東洋経済2020年12月号に寄稿しました。オンライン記事はこちらから（Short abstract in Japanese）。
  • Okamoto, Chigusa (2019) “The effect of automation levels on US interstate migration,” The Annals of Regional Science, 63(3), 519-539. [link]
  • 岡本千草 (2017)「企業間と産学間の共同研究における地理的近接性（Geographic proximity of collaborations between firms and collaborations between firms and universities）」,『応用経済学研究』, 第 11 巻, 55–71 項.
Unrefereed Publications & Working Papers 
  • Daiji Kawaguchi, Keisuke Kawata, Chigusa Okamoto (2024) “Urban Redevelopment Program and Demand Externality,” IZA Disucssion Paper Series No.16925. [link]
  • 岡本千草（2024）「日本のスタートアップ事業分野とその立地パターンについて」CREI Report No.16. [Full Paper]
  • Ito, Tadashi, Chigusa Okamoto and Yukiko U. Saito (2020)  “Intermediaries in Transaction Networks: Location of Wholesalers’ Headquarters and Other Establishments,” RIETI Discussion Paper Series 20-E-056, Research Institute of Economy, Trade and Industry. [link(English), link(Japanese)]
  • 長谷川大輔・岡本千草・秋山祐樹・長瀬洋裕・武藤祥郎（2023）「施設・企業立地の集積・多様性がスタートアップの立地に及ぼす影響（Impact of aggregation and diversity of facilities and company locations on start-up locations）」CREI Working Paper No.13. [Abstract, Full Paper]
  • 岡本千草 (2022)「企業と大学の研究活動の集積及び共集積に関する分析（Cluster and Co-cluster Analysis of Firm’s and University’s Research Activities）」,『経済学論纂』, 第 63巻3・4号, 1-16項. [link]
Work in Progress
  • Entry location of startups: Does diversity matter?
  • Social integration of immigrants in cities: Theory and evidence from the European Social Survey (with Yasuhiro Sato and Hiroyuki Matsuyama)
  • Marginal Rent Index and Japan’s Consumer Price Index (with Jiro Yoshida, Kiyohiko Nishimura, Atsushi Yamagishi, and Yukie Sakuragawa)
  • Knowledge Spillovers through Industry-University Collaboration