My research focuses on the mechanism of spatial organisation in economic activities.


Highways, High-Speed railways, and Urban Growth: Evidence from Japan 1970—2015 (with Tomoya Mori)

Short abstract: This paper studies the impact of high-speed transport network on urban growth at both the national and individual city scales, and provides the first systematic evidence for theoretical implications from the extant endogenous agglomeration models in a many-region setup. An improvement of inter-regional transport access induces agglomeration at the global scale — only a subset of cities grow by absorbing population from the rest, and dispersion at the local scale — decentralization proceeds in each city. Furthermore, we find contrasting responses to the transport development by different industries and research activities.

On Spatial Inequality

Short abstract: What determines the segregation of households and geographical distribution of firms in a city? This paper develops a spatial equilibrium model of an urban system with heterogeneous agents and endogenous commuting. Heterogeneity in skills and task assignment leads to both residential and workplace sorting, and heterogeneity across firms leads to production place sorting.

Spatial Frictions and Urban SYSTEM

Research question: What is the shape of a city in the future? — We consider the impact of change in spatial friction and growth of a city.

Industrial Coagglomeration: A Cluster base Approach

Short abstract: This paper proposes the new framework to identify coagglomeration between industries based on spatial cluster-detection approach, Our approach theoretically builds on Central Place Theory as well as spatial sorting of firms. Using data on manufacturing industries in Japan, we demonstrate the performance of our new methodology, and illustrates its advantage over the existing methods.


© Kohei Takeda 2019