2021 - 2024 Development of the analytical framework of human mobility networks
2021 - 2024 GPSデータを用いた観光需要と観光外部性の研究
2019 - 2023 局所相互作用ゲームの理論と空間経済学
2018 - 2023 数量的空間経済学の発展:複数均衡,ネットワーク,政策評価
2016 - 2020 Strategic interactions through space, time, and information: Theory and application to spatial economics
2015 - 2019 Elaborating policy evaluation in stochastic discrete-choice models
2013 - 2018 Study of Urban Spatial Structure: Research on New Problems and their Solutions in a Shrinking Economy
2013 - 2015 On the game-theoretic foundations of spatial economic models
2010 - 2014 Spatial economics revisited and empirics on global city system
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Papers (15):
Takaaki Aoki, Shota Fujishima, Naoya Fujiwara. Identifying sinks and sources of human flows: A new approach to characterizing urban structures. Environment and Planning B: Urban Analytics and City Science. 2023. 239980832311806-239980832311806
Takaaki Aoki, Shota Fujishima, Naoya Fujiwara. Urban spatial structures from human flow by Hodge-Kodaira decomposition. Scientific Reports. 2022. 12. 1
Shota Fujishima, Tadao Hoshino, Shinya Sugawara. Heterogeneous Effects of Place-Based Policies and a Practical Treatment Assignment Rule (jointly worked). SSRN Working Paper. 2020
Shota Fujishima, Naoya Fujiwara, Yuki Akiyama, Ryosuke Shibasaki, Ritsu Sakuramachi. The size distribution of ‘cities’ delineated with a network theory-based method and mobile phone GPS data (jointly worked). International Journal of Economic Theory. 2020. 16. 1. 38-50
Marcus Berliant, Shota Fujishima. Optimal Income Taxation with a Stationarity Constraint in a Dynamic Stochastic Economy (jointly worked). Journal of Public Economic Theory. 2017. 19. 3. 739-747