About OPRI

Staff Members

Hajime Tanaka
Ocean Policy Research Institute
(Division of Ocean Policy Research)

Research Fellow
Hajime Tanaka
Hajime Tanaka is affiliated with the Ocean Policy Research Institute (OPRI) as Research Fellow. He has master degrees of Economics from Waseda University and International Affairs from University of California, San Diego, and is a PhD candidate of Agriculture from University of Tokyo. His specialized field is the Impact evaluation analysis using Econometrics and Geographical information System in the field of Ocean Economy. 


  • Policy Evaluation 
  • Ocean Economy 
  • Ocean Policy Research 
  • Input-Output Table 
  • Impact Evaluation 
  • Disaster 
  • Economic Evaluation 
  • Blue Economy 
2023 Economic evaluation of MSY-based fishery policy using input-output table: A case study of squid-related industries in Hakodate City, Japan 
Hajime Tanaka, Mitsutaku Makino
Marine Policy, 157, Sep, 2023
2023 Blue Economy Evaluation Study using Input-Output Table: Hakodate-City as a case study 
Hajime Tanaka
Doctoral Dissertation of University of Tokyo, Mar, 2023
2021 Building Back Better in Small Island Developing States in the Pacific: Initial Insights from the BinD Model of Disaster Risk Management Policy Options in Fiji. 
Nepomuk Dunz, Hajime Tanaka, Nagisa Shiiba, Junko Mochizuki, Asjad Naqvi
ADBI Working Paper, Dec, 2021 
2021 Tsunami Impact Assessment and Vulnerability Index Development using Computable General Equilibrium (CGE) Model and Geographic Information System (GIS) – A Study on Mie Prefecture, Japan 
Hajime Tanaka, Nagisa Shiiba, Michael C. Huang
IDRiM Journal, Sep 23, 2021
2021 Impact assessment and a fiscal recovery policy for tsunami risk: GIS and the general equilibrium approach in Hakodate city, Japan 
Hajime Tanaka, Michael C Huang
Environment and Planning B: Urban Analytics and City Science, 48(5) 1144-1160, Jun, 2021
2021 How blue financing can sustain ocean conservation and development: A proposed conceptual framework for blue financing mechanism 
Nagisa Shiiba, Hsing Hao Wu, Michael C. Huang, Hajime Tanaka
Marine Policy, 139 104575-104575, May, 2021 
2020 Policy simulation of 6th industrialization subsidy using dynamic general equilibrium model: Case of Hakodate city, Hokkaido 
Tanaka, H, Huang,C, M
Ocean policy studies, 14(1) 73-87, 2020
2019 Quick Survey Method for River Litter Coupled with Spatial Autocorrelation Analysis 
Shioiri, T, Yoshioka, N, Tanaka, H, Seino, S, Isobe, T
Journal of coastal zone studies, 32(3) 31-40, Aug, 2019 
2015 Historical creating-process of the Debt-Deflation Theory”. Waseda University Master Thesis 
Hajime Tanaka
Master thesis of Waseda University, Mar, 2015
Using Regional Input-Output Table for an Economic Evaluation of the Amended
Fisheries Act: A Case of Squid-related Industry in Hakodate City, Japan (October 31, 2021).
ADBI-OPRI, Virtual Conference on Blue Economy and Blue Finance: Towards Sustainable Development and Ocean Governance (November 30, 2020).
ADBI-Purdue University-University of Tokyo, Virtual Workshop on Resilience of Cities to External Shocks: Analysis, Modeling, and Economic Impacts (October 27-28, 2020).
Integrated Disaster Risk Management (IDRiM) Society. IDRiM Virtual Workshop for Interactive Discussions between Senior and Early-Career Scientists. Tsunami Disaster Impact and Vulnerability Index Assessment: An Approach of GIS and CGE model for Mie Prefecture, Japan (September 24, 2020).
WORLD BOSAI FORUM (November 9-12, 2019).
Asia Pacific Social Enterprise Summit (May 11, 2019).
"How can we approach to ocean micro plastic debris ?" Asia Pacific Social Enterprise Summit (May 11, 2019)


Academic/Professional Background
Received first Master's Degree in Economics from Waseda University and received second Master's Degree in International Affairs from the School of Global Policy and Strategy from the University of California, San Diego. Began current position at SPF in October 2018.
Academic Society etc.
  • Japan Society of Ocean Policy
  • Japanese Association for Coastal Zone Studies
  • Pan Pacific Association of Input-Output Studies
Professional Background
  • Research fellow at the Ocean Policy Research Institute (OPRI), the Sasakawa Peace Foundation (2018)
Academic Background
  • Master’s Degree in International Affairs of China and Quantitative Analysis Certificates from the Project Design and Evaluation Lab at the University of California, San Diego in 2018
  • Master’s Degree of Economics from the Graduate School of Waseda University in 2015
  • Bachelor’s Degree of Economics from Waseda University in 2012.
  • STATA, R, Python, Arc-GIS, Google Satellite API


Japanese, English, Mandarin

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