Ph. D (Economics) Hitotsubashi Univesrsity, July 2017
MA (Economics), Hitotsubashi University, March 2014
BA (Economics), Sophia University, March 2012
Research Fellow, JICA Research Institute (current JICA Ogata Sadako Research Institute for Peace and Development), August 2017–present
Part-time lecturer (Industrial Organization), Sophia University, April 2017–present
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
Major Publications[Journal Articles]
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).
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
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.