AIBA Daiju

Ph. D (Economics) Hitotsubashi Univesrsity, July 2017
MA (Economics), Hitotsubashi University, March 2014
BA (Economics), Sophia University, March 2012

JICA Expert, National Bank of Cambodia, April 2023 - Present
Visiting Fellow, JICA Ogata Sadako Research Institute for Peace and Development, September 2022-Present
Assistant Professor, Faculty of Commerce, Waseda University, September 2022-March 2023
Research Fellow, JICA Research Institute (current JICA Ogata Sadako Research Institute for Peace and Development), August 2017–August 2022
Research Fellow, Japan Society for Promotion of Science, April 2016–July 2017
Research Assistant, JICA Research Institute, April 2014–March 2016
Research Assistant, Mori Arinori Center for Higher Education and Global Mobility, Hitotsubashi University, April 2014–March 2016

[Teaching Experience]
Econometrics, Statistics: Graduate School of Commerce, Waseda University, September 2022 - March 2023
Microeconomics: Toyo University, April 2020 - March 2022
International Finance: University of Shizuoka, April 2019 - August 2019
Industrial Organization: Sophia University, April 2017–March 2019

[Comittee]
Invitee Member, Safe Finance Central Committee, Cambodia, October 2023 - Present

Khou, Vouthy, Daiju Aiba & Ken Odajima (2023) "Dollarization in Households," in Hidenobu Okuda, & Serey Chea (Ed.) Cambodian Dollarization: Its Policy Implications for LDCs’ Financial Development, pp.38-68.

Sok Heng Lay, & Daiju Aiba (2023) "Enterprise and Dollarization," in Hidenobu Okuda, & Serey Chea (Ed.) Cambodian Dollarization: Its Policy Implications for LDCs’ Financial Development, pp. 69-104.

Aiba, Daiju & Sovanney Chey(2023) "Dollarization and Financial Institutions ," in Hidenobu Okuda, & Serey Chea (Ed.) Cambodian Dollarization: Its Policy Implications for LDCs’ Financial Development, pp.105-133.

Sovannroeun Samreth, Daiju Aiba, Sothearoath Oeur, Vanndy Va (2023) "Impact of the Interest Rate Ceiling on Credit Cost, Loan Size, and Informal Credit in the Microfinance Sector: Evidence from a Household Survey in Cambodia" Empirial Economics.

Aiba, Daiju (2023) "Bank dependency on foreign funding and global liquidity shocks: The importance of US monetary policy for a developing country." Journal of Asian Economics, 84, 101553.

Aiba, Daiju & Hidenobu Okuda (2021) "The Cost Efficiency of Cambodian Commercial Banks: A Stochastic Frontier Analysis ." Singapore Economic Review

Aiba, Daiju (2021) “Introducing First Central Bank Digital Currency in Cambodia and Its Economic and Political Implications”, Diplomacy (Gaikou), Vol. 65, p.122-128, Ministry of Foreign Affairs (In Japanese)

Aiba, Daiju & Lam, Roviey (2019). Is Dollarization a Problem in the Cambodian Microfinance Sector? Asian Studies (Aziya Kenkyu), 65(1), pp. 45-60.

Odajima, Ken & Aiba, Daiju (2019). Dollarization in Cambodia: A Review of Recent Empirical Findings from a Nation-Wide Survey. Asian Studies (Aziya Kenkyu) , 65(1), pp. 24-44.

Okuda, H., & Aiba, D. (2018).
Capital structure decisions in a highly dollarized economy: Evidence from Cambodian firms . Journal of Asian Economics, Volume 58, Pages 1-18.

Aiba, Daiju, Ken Odajima, & Khou Vouthy (2018). Foreign currency borrowing and risk-hedging behavior: Evidence from Cambodian households . Journal of Asian Economics, Volume 58, pages 19-35.

Okuda, Hidenobu. & Aiba, Daiju (2018) Determinants of Firm’s Borrowing Ratio in Cambodia: Constraints on Choice of Borrowing Currency in a Dollarized Economy. Asian Studies, Vol64(2), 1-20. [Published in Japanese] 邦題：奥田英信, & 相場大樹. (2018).「ドル化経済における企業の資金調達: カンボジアの事例.」 『アジア研究』Vol.64(2), 1-20.

Aiba, Daiju, & Pagna Sok. (2017). Financial Dollarization: Evidence from a Survey on Branches of Cambodian Financial Institutions . Hitotsubashi Economics, 10(2), 81-116.

Aiba, Daiju, & Ranareth Tha. (2017). Dollarization and Enterprise's Behaviors: The Case of Cambodia . Hitotsubashi Economics, 10(2), 49-80.

Kato, N., & Aiba, D. (2017). Relationship between Subject-Specific and Generic Competencies: Evidence from a Survey on Japanese Universities . Journal of Higher Education Theory and Practice, 17(9), 41-49.

Okuda, Hidenobu, & Daiju Aiba. (2016). Determinants of Operational Efficiency and Total Factor Productivity Change of Major Cambodian Financial Institutions: A Data Envelopment Analysis During 2006–13 . Emerging Markets Finance and Trade, 52(6), 1455-1471.

Okuda, Hidenobu, Chea Poleng, & Daiju Aiba. (2014). Operational Efficiency and Productivity Change of Major Cambodian Financial Institutions During the 2006-2011 Period , International Journal of Business and Information, 9(3), 335.

Daiju Aiba, Sovannroeun Samreth, Sothearoath Oeur and Vanndy Vat (2020) “ The Impact of Interest Rate Cap Policy on the Lending Behavior of Microfinance Institutions in Cambodia: Evidence from millions of observations in the Credit Registry Database ” Discussion Paper SU-RCSDEA 2020-008, Japan: Saitma University

Sovannroeun Samreth, Daiju Aiba, Sothearoath Oeur and Vanndy Vat (2020) “ Impacts of Interest Rate Ceiling on Microfinance Sector in Cambodia: Evidence from a Household Survey ” Discussion Paper SU-RCSDEA 2020-007, Japan: Saitma University

Okuda, H., & Aiba, D. (2018). Determinants of Firms’ Capital Structure Decisions in Highly Dollarized Economies: Evidence from Cambodia . JICA-RI Working Paper Series No. 160, Tokyo.

Aiba, Daiju, Ken Odajima, & Khou Vouthy. (2017) Foreign Currency Borrowing and Risk-Hedging Behavior: Evidence from a Household Survey in Cambodia . JICA-RI Working Paper Series No. 143, Tokyo.

奥田英信, & 相場大樹. (2016). ドル化経済における企業の資金調達: カンボジアの事例. Discussion Paper. No. 2016-08,Graduate School of Economics, Hitotsubashi University.

Maki Kato, Daiju Aiba (2016) Relationship between Subject-specific and Generic Competencies: Evidence from a Survey on Japanese Universities, Mori Arinori Center for High Education and Global Mobility Working Paper; No. WP2016-01

Aiba, Daiju (October 28, 2018). Bank Lending Channel and International Capital Flows into a Banking Sector in a Dollarized Economy, The 16th International Convention of the East Asian Economic Association, Taiwan National University, Taipei, Taiwan.

Aiba, Daiju (October 20, 2018). The role of regulation in financial inclusion: The case of a lending restriction on microfinance institutions, The 2018 Autumn Meeting of Japan Society of Monetary Economics, Nagoya City University, Nagoya, Japan.

Okuda, H., & Aiba, Daiju. (April 12, 2018). Capital Structure Decisions in a Highly Dollarized Economy: Evidence from Cambodian Firms, The XII April International Academic Conference on Economics and Social Development, Higher School of Economics, Moscow, Russia.

Aiba, Daiju, Odajima, Ken. (June 2017) Foreign Currency Borrowing: Evidence from Household Survey, The Second World Congress of Comparative Economics, St. Petersburg, Russia.

Okuda, H., & Aiba, Daiju. (November 2016). Determinants of Capital Structure of Cambodian Firms: Firms’ Fund Raising Behavior in Highly Dollarized Emerging Markets, the 15th EAEA International Convention, Padjadjaran University, Bandung, Indonesia.

Aiba, Daiju (October 15, 2016). Efficiency of Cambodian Commercial Banks: An Application of Stochastic Frontier Analysis, The 2016 Autumn Meeting of Japan Society of Monetary Economics, Kansai University, Osaka, Japan.

Aiba, Daiju, Odajima, Ken. (January 2016) Foreign Currency Borrowing: Evidence from Household Survey, The 12th International Conference of Western Economic Association International, Singapore.

Okuda, H., & Aiba, Daiju. (April 12, 2018). Capital Structure Decisions in a Highly Dollarized Economy: Evidence from Cambodian Firms, The 2015 Autumn Meeting of Japan Society of Monetary Economics, Tohoku University, Miyazaki, Japan.

Okuda, Hidenobu, & Aiba Daiju (November 2014) Determinants of Efficiency of Cambodian Commercial Banks: A New Technique of Bootstrapping Estimation Using Data Envelopment Analysis, The 14th International Convention of the East Asian Economic Association, Chulalongkorn University, Bangkok, Thailand.

East Asian Economics Association
Japan Society of Monetary Economics
Japan Association for Asian Studies
Japan Association for Comparative Economics

[Competitive Research Funds]
Grant-in-Aid for Scientific Research (C) “Impact of Acquisition of Microfinance Institutions on Financial Inclusion: The case of Cambodia”, No. 22K01514, 2022-2024, project leader.

Grant-in-Aid for Scientific Research (C) “An empirical study on regulations and their impacts on outreach and profitability of microfinance institutions: The case of Cambodia”, No. 18K01641, 2018-2021, project leader.

[Dissertation for Degree of Doctor of Philosophy]
Aiba, Daiju (2017) Essays on Emerging Issues in Financial Development of a Developing Country: The Case of Cambodia.