Introduction

Regarding decision-making in economic policy, we consider the political influences and capture the economic effects of policies, analyzing them both theoretically and empirically. From this analysis, we aim to present the economic implications of policies, taking into account their political feasibility, on issues such as rising budget deficits, the approach to fiscal consolidation and tax reform, which have recently been issues in advanced countries. Particularly recently, in our country, the effectiveness of fiscal policy and the relationship between the scale of fiscal deficits, tax refrm, and political processes (such as the electoral system and bureaucratic structures) are being questioned. Therefore, we feel the necessity of research focusing on these issues and are engaged in studies targeting them.

■Tax Policy and Tax Reform
・Research Objective: Desirable Tax Reform in Japan
- Title: "Tax Reform Need To Be Implemented in Japan," Takero Doi ed., Nikkei Publishing Inc., 2010.
・Research Objective: Economic Analysis on Corporate Tax Reform in Japan
- Title: Incidence of Corporate Tax after the Corporate Tax Reform in Japan: A Simulation Analysis with a Dynamic Macroeconomic Model, Takero Doi, "Japan Center for Economic Research Economic Journal", vol.78, pp.1-34, 2020.
- Title: Another Better Way of the Corporate Tax Reform in Japan: Close But Not the Same as the Value-added Tax, Takero Doi, Hiroshi Katagi, "Keio Economic Studies," pp.3-21, 2023.
・Research Objective: Effects of Personal Income Tax Reform on Household Income Inequality
- Title: A Micro-simulation of Effects on Households of Introducing Child-care Benefits: Using Data of Japanese Household Panel Survey (JHPS), Takero Doi, "Economic Review," vol.61(2), pp.137-153, 2010.
- Title: Effect of Deductions of Personal Income Tax on Income Inequality in Japan: A Microsimulation of Reform of Spousal Tax Deductions and Tax Credit, Takero Doi, "Economic Review," vol.68(2), pp.150-168, 2017.
- Title: A Microsimulation Analysis on the Japanese Personal Income Tax Reforms in the 2010s, Takero Doi, "Public Finance Studies," vol.19, pp.85-108, 2023.
■Fiscal Policy
・Research Objective: Economic Analysis of Current Fiscal Policy in Japan
- Title: "The Public Sector in Japan," Takero Doi, Toshihiro Ihori, Edward Elgar Publishing, 2009.
- Title: "Making Economic Policy in the 2000s and 2010s in Japan (How Were the Economic Policies of the Heisei Era Decided?)," Takero Doi ed., Chuokoron-Shinsha Inc., 2020.
- Title: "Introduction to Public Finance, 2nd ed.," Takero Doi, Nippon Hyoron Sha, 2021.
・Research Objective: Fiscal Reconstruction in Japan
- Title: Fiscal Reconstruction and Local Interest Groups in Japan, Takero Doi, Toshihiro Ihori, "Journal of the Japanese and International Economies," vol.16(4), pp.492-511, 2002.
- Title: "Fiscal Reconstruction Need To Be Implemented in Japan," Takero Doi ed., Nikkei Publishing Inc., 2012.
・Research Objective: Productivity and Interregional Allocation of Public Capital in Japan
- Title: Panel Analysis of Public Capital in Japan, Takero Doi, "Kokumin Keizai," vol.161, pp.29-45, 1998.
- Title: Distribution of Public-capital-generated Gains among Factors, Takero Doi, "Journal of Social Science," vol.51(4), pp.91-133, 2000.
- Title: "Regional Economy and Fiscal Policy in Japan," Takero Doi, Mitsubishi Economic Research Institute, 2002.
・Research Objective: Economic Analysis on Fiscal Investment and Loan Program (FILP) in Japan
- Title: Paying for the FILP, Takero Doi, Takeo Hoshi, "Structural Impediments to Growth in Japan," pp.37-69, University of Chicago Press, 2003.
- Title: Government Financial Institutions: What and how to reform?, Takero Doi, "Reviving Japan's Economy," pp.197-240, MIT Press, 2005.
- Title: Rethinking Role of Government Financial Institutions and Private Financial Institutions, Takero Doi, "Securities Analysts Journal," vol.53(1), pp.30-42, 2015.
■Fiscal Sustainability
・Research Objective: Empirical Analysis on Fiscal Sustainability
- Title: The Sustainability of National and Local Government Deficits in Japan, Takero Doi, Toru Nakazato, "Financial Review (Ministry of Finance)," vol.47, pp.76-105, 1998.
- Title: Japanese Fiscal Reform: Fiscal Reconstruction and Fiscal Policy, Toshihiro Ihori, Takero Doi, Hiroki Kondo, "Japan and the World Economy," vol.13(4), pp.351-370, 2001.
- Title: Sustainability Problem, Toshihiro Ihori, Takero Doi, "Government Deficit and Fiscal Reform in Japan," pp.45-56, Kluwer Academic Publishers, 2002.
- Title: Debt Management Policies, Maturity Structure and Fiscal Sustainability, Takero Doi, "Financial Review (Ministry of Finance)," vol.79, pp.166-187, 2005.
- Title: Sustainability, Debt Management, and Public Debt Policy in Japan, Takero Doi, Toshihiro Ihori, Kiyoshi Mitsui, "Fiscal Policy and Management in East Asia, East Asia Seminar on Economics," vol.16, pp.377-412, The University of Chicago Press, 2007.
- Title: Japanese Government Debt and Sustainability of Fiscal Policy, Takero Doi, Takeo Hoshi, Tatsuyoshi Okimoto, "Journal of the Japanese and International Economies," vol.25(4), pp.414-433, 2011.
- Title: Is Abe's Fiscal Policy Ricardian? What Does the Fiscal Theory of Prices Mean for Japan?, Takero Doi, "Asian Economic Policy Review," vol.13(1), pp.46-63, 2018.
■Debt Management Policy
・Research Objective: Analysis on Maturity Structure of the Japanese Government Bonds
- Title: Analysis of Bond Management Policy Concerning the Maturity Structure of the Japanese Government Bonds, Takero Doi, "Economic Analysis (Economic and Social Research Institute, Cabinet Office)," vol.163, pp.123-154, 2002.
- Title: Economic Analysis of Debt Management Policy: Views and Suggestions, Takero Doi, "Financial Review (Ministry of Finance)," vol.76, pp.124-149, 2005.
■Local Public Finance
・Research Objective: Empirical Analysis on the Japanese Local Public Finance
- Title: "Political Economy of the Japanese Local Finance," Takero Doi, Toyo Keizai Inc., 2000.
- Title: Poverty Traps with Local Allocation Tax Grants in Japan, Takero Doi, "Japanese Economic Review," vol.61(4), pp.466-487, 2010.
・Research Objective: Economic Analysis on Local Government Bonds
- Title: The System and Role of Local Bonds Permits in Japan, Takero Doi, "Government Deficit and Fiscal Reform in Japan," pp.121-151, Kluwer Academic Publishers, 2002.
- Title: Local Government Bond and Its Disposal Scheme, Takero Doi, "Financial Review (Ministry of Finance)," vol.71, pp.5-40, 2004.
- Title: Local Borrowing Subsidized through the Local Allocation Tax Grants: Does It Increase Public Capital Spending?, Takero Doi, Shun-ichiro Bessho, "Japan Center for Economic Research Economic Journal," vol.51, pp.33-58, 2005.
- Title: Comparative Institutional Analysis of Local Government Bonds, Takero Doi, "Economic Review," vol.56(3), pp.203-217, 2005.
- Title: Empirical Analysis on Subsidized Payments of Principal and Interest on Local Government Bonds in Japan, Takero Doi, Shun-ichiro Bessho, "Public Finance Studies," vol.1, pp.311-328, 2005.
- Title: Economic Analysis on Local Government Debts, Takero Doi, "Financial Review (Ministry of Finance)," pp.161-196, 2006.
- Title: "Economics of Local Bond System," Takero Doi, Nikkei Publishing Inc., 2007.
■Political Economy and Public Choice
・Research Objective: Economic Analysis on Voting Behavior
- Title: "Economic Analysis of the Japanese Politics," Toshihiro Ihori, Takero Doi, Bokutaku-Sha, 1998.
- Title: Empirics of the Median Voter Hypothesis in Japan, Takero Doi, "Empirical Economics," vol.24(4), pp.667-691, 1999.
- Title: Tax Policy Under the 'Generational Election System', Takero Doi, "The Political Economy of Fiscal Consolidation in Japan," pp.145-165, Springer, 2015.
■Health Care
・Research Objective: Health Care Financing in Japan
- Title: Stably Securing the Financial Resources for Social Security and Fiscal Reconstruction, Takero Doi, "Japan Medical Association Journal," vol.51(2), pp.103-112, 2008.
- Title: Fiscal Agendas in the Universal Health Insurance System of Japan, Takero Doi, "Medicine and Drug Journal," vol.48(9), pp.101-108, 2012.
- Title: Trends and Forecast of the Comprehensive Reform of Social Security and Tax, Takero Doi, "Japanese Journal of Health Economics and Policy," vol.25(1), pp.3-17, 2014.
■Economic Modeling and Forecasts
・Research Objective: Business Forecast for the Japanese Economy
- Title: Herd Behavior of Japanese Economists, Masahiro Ashiya, Takero Doi, "Journal of Economic Behavior and Organization," vol.46(3), pp.343-346, 2001.
- Title: Data-Driven Estimation of Economic Indicators with Search Big Data in Discontinuous Situation, Kazuto Ataka, Goshi Aoki, Takero Doi, Kota Tsubouchi, "Journal of Finance and Data Science," vol.9, 100106, 2023.
■Japanese Household Behavior
・Research Objective: Analysis of Precautionary Savings
- Title: Increase in Saving Rate and Precautionary Saving Motive in Japan, Takero Doi, "Economic Analysis (Economic and Social Research Institute, Cabinet Office)," vol.174, pp.97-176, 2004.

Areas of Research

・Economic analysis of tax reform considering political feasibility
・Political-economic analysis of intergovernmental fiscal relations
・Public Economics, Public Choice

Social Contributions

・Informed policy-making for sustainable economic growth and government debt
・Enhancement of public financial accountability and transparency