I have used spatial general equilibrium models and international input–output models to analyze the spatial economic effects of transportation investments and the economic effects of trade liberalization and regional integration reflected in the reduction or elimination of tariff and non-tariff barriers. In recent years, I have applied these models to research on global value chains (GVCs) and climate change. In particular, I have conducted research to track greenhouse gas emissions associated with GVCs and to determine the share of responsibility for those emissions by examining the “smile curve” phenomenon of the location and value acquisition of countries participating in GVCs by performing interdisciplinary integration of value-added trade accounts with carbon footprints in environmental analyses.
Current research projects
I have developed an applied spatial general equilibrium model and an international input–output model. These models explicitly take into account information on firm heterogeneity (e.g., owner-chef, scale, trade patterns), extend the concept of value-added trade to factor income trade, and are applied to income distribution across global value chains, tracking of greenhouse gas emissions and sharing of relevant responsibilities, and productivity analysis.