His research interest includes Keynesian macroeconomics, Institutional economics, and Japanese economy. He recently published "A Multi-Sectoral Balance-of-payments-constrained Growth Model with Sectoral Heterogeneity," in Structural Change and Economic Dynamics (2016), "Structural Change and Transformation of Growth Regime in the Japanese Economy," in Evolutionary and Institutional Economics Review (2016), and "Comparative Evaluation of Post-Keynesian Interest Rate Rules, Income Distribution, and Firms' Debts for Macroeconomic Performance," in Cambridge Journal of Economics (2015). He holds PhD in Economics, Kyushu University.