TOO MUCH OF A GOOD THING? UNCOVERING THE OPTIMAL LEVEL OF FINANCIAL INCLUSION FOR GROWTH

Autores/as

DOI:

https://doi.org/10.18623/rvd.v22.n6.3956

Palabras clave:

Financial Inclusion, Economic Growth, Nonlinear Effects, System GMM, Threshold Estimation

Resumen

This study investigates the nonlinear effect of financial inclusion on economic growth using a balanced panel of 54 countries from 2004 to 2023. A multidimensional financial inclusion index is constructed using principal component analysis to capture both supply side and demand side dimensions of access. Employing the dynamic system GMM estimator, the analysis addresses potential endogeneity, persistence and unobserved heterogeneity. The results reveal an inverted U shaped relationship between financial inclusion and economic growth. Financial inclusion has a positive and significant effect at lower levels, but its marginal impact declines and eventually becomes negative once a threshold level is exceeded. The estimated turning point is 27.8, indicating that financial inclusion promotes growth only up to this level. Vietnam’s financial inclusion level of 21.5 places it below the threshold, implying that further expansion in financial access can still yield growth enhancing benefits if accompanied by appropriate regulation and consumer protection. The study highlights the need for policymakers to balance the expansion of financial services with effective supervision to avoid excessive lending and financial instability. Overall, the findings underscore that financial inclusion is beneficial, but only when managed in a sustainable and well regulated manner.

Citas

Aghion, P., & Bolton, P. (1991). Government Domestic Debt and the Risk of Default: A Political-Economic Model of the Strategic Role of Debt.

Albiman, M. M., & Bakar, H. O. (2021). The role of financial inclusion on economic growth in Sub Saharan African (SSA) region. Athens Journal of Business and Economics, 8, 1-21.

Alesina, A., & Rodrik, D. (1994). Distributive politics and economic growth. The quarterly journal of economics, 109(2), 465-490.

Arya, P. (2014). Financial inclusion and economic development. The Brahmaputra Rhythm of The Promises, 7(1), 41-45.

Beck, T., & Demirgüç-Kunt, A. (2008). Access to finance: An unfinished agenda. The world bank economic review, 22(3), 383-396.

Bhorat, H., & van der Westhuizen, C. (2008). Economic growth, poverty and inequality in South Africa: the first decade of democracy. Development Policy Research Unit Conference,

Braun, M., Parro, F., & Valenzuela, P. (2019). Does finance alter the relation between inequality and growth? Economic Inquiry, 57(1), 410-428.

Breunig, R., & Majeed, O. (2020). Inequality, poverty and economic growth. International Economics, 161, 83-99.

Cecchetti, S. G., & Kharroubi, E. (2012). Reassessing the impact of finance on growth.

Chen, W., & Yuan, X. (2021). Financial inclusion in China: an overview. Frontiers of Business Research in China, 15(1), 1-21.

Chibba, M. (2009). Financial inclusion, poverty reduction and the millennium development goals. The European Journal of Development Research, 21, 213-230.

Chroufa, M. A., & Chtourou, N. (2022). Inequality and Growth in Tunisia: New Evidence from Threshold Regression. Social Indicators Research, 163(2), 901-924.

Cingano, F. (2014). Trends in Income Inequality and its impact on economic growth [oecd Social, Employment and Migration Working Papers no. 163]. Disponible a través de: oecd Publishing< http://dx. doi. org/10.1787/5jxrjncwxv6j-en>. La relación entre crecimiento económico y pobreza en México I, 111.

Dabla-Norris, M. E., Deng, Y., Ivanova, A., Karpowicz, M. I., Unsal, M. F., VanLeemput, E., & Wong, J. (2015). Financial inclusion: zooming in on Latin America. International Monetary Fund.

Dahiya, S., & Kumar, M. (2020). Linkage between financial inclusion and economic growth: An empirical study of the emerging Indian economy. Vision, 24(2), 184-193.

Demirguc-Kunt, A., Klapper, L., Singer, D., & Ansar, S. (2018). The Global Findex Database 2017: Measuring financial inclusion and the fintech revolution. World Bank Publications.

Demirgüç-Kunt, A., Klapper, L. F., Singer, D., & Van Oudheusden, P. (2015). The global findex database 2014: Measuring financial inclusion around the world. World Bank Policy Research Working Paper(7255).

Dinh L.Q. (2025a). “The Impact of Digital Financial Inclusion on Income Inequality Amid Economic Complexity: A GMM and Bayesian Regression Approach”. Social Responsibility Journal, 21(7), 1383–1400. https://doi.org/10.1108/SRJ-10-2024-0727

Dinh, L. Q. (2025b). The optimal inflation threshold in digital financial inclusion: a key to sustainable development. SN Business & Economics, 5(5), 1-20. https://doi.org/10.1007/s43546-025-00810-1

Dinh, L. Q. (2025c). Reassessing the Impact of Foreign Direct Investment on Environmental Quality in 112 Countries: A Bayesian Quantile Regression Approach. International Social Science Journal. 75(257), 641-659. https://doi.org/10.1111/issj.12577

Dinh L.Q (2025d). Is There a Trade-Off Between Sustainable Development Goals Achievement and Banking Profitability? Evidence From Combined Non-Parametric Methods. Natural Resources Forum. https://doi.org/10.1111/1477-8947.70036

Erlando, A., Riyanto, F. D., & Masakazu, S. (2020). Financial inclusion, economic growth, and poverty alleviation: evidence from eastern Indonesia. Heliyon, 6(10), e05235.

Forbes, K. J. (2000). A reassessment of the relationship between inequality and growth. American Economic Review, 90(4), 869-887.

Gelman, A., & Hill, J. (2006). Data analysis using regression and multilevel/hierarchical models. Cambridge university press.

Hailemariam, A., & Dzhumashev, R. (2019). Income inequality and economic growth: heterogeneity and nonlinearity. Studies in Nonlinear Dynamics & Econometrics, 24(3), 20180084.

Huang, R., Kale, S., Paramati, S. R., & Taghizadeh-Hesary, F. (2021). The impact of financial inclusion and trade openness on economic development in the European Union. Economic Integration in Asia and Europe: Lessons and Policies, 641-664.

Ifediora, C., Offor, K. O., Eze, E. F., Takon, S. M., Ageme, A. E., Ibe, G. I., & Onwumere, J. U. (2022). Financial inclusion and its impact on economic growth: Empirical evidence from sub-Saharan Africa. Cogent Economics & Finance, 10(1), 2060551.

Inoue, T., & Hamori, S. (2016). Financial access and economic growth: Evidence from Sub-Saharan Africa. Emerging Markets Finance and Trade, 52(3), 743-753.

Inoue, T., & Hamori, S. (2019). Financial inclusion, remittance inflows, and poverty reduction in developing countries: evidence from empirical analyses. World Scientific.

Johnson, S., & Arnold, S. (2012). Inclusive financial markets: is transformation under way in Kenya? Development Policy Review, 30(6), 719-748.

Karim, Z. A., Nizam, R., Law, S. H., & Hassan, M. K. (2022). Does financial inclusiveness affect economic growth? New evidence using a dynamic panel threshold regression. Finance Research Letters, 46, 102364.

Khalifa, S., & El Hag, S. (2010). Income disparities, economic growth and development as a threshold. Journal of Economic Development, 35(2), 23.

Kim, D.-W., Yu, J.-S., & Hassan, M. K. (2018). Financial inclusion and economic growth in OIC countries. Research in International Business and Finance, 43, 1-14.

Knowles, S. (2005). Inequality and economic growth: The empirical relationship reconsidered in the light of comparable data. The Journal of Development Studies, 41(1), 135-159.

Kruschke, J. (2014). Doing Bayesian data analysis: A tutorial with R, JAGS, and Stan.

Kuznets, S. (1955). Economic Growth and Income Inequality. The American Economic, 45 (1), 1–28. In.

Kim, O. T. T., & Quoc, D. L. (2024). Exploring the influence of digital financial inclusion and technological progress on renewable energy consumption: a Bayesian quantile regression analysis. Environment, Development and Sustainability, 1-30. https://doi.org/10.1007/s10668-024-05675-2

Khoi, N.T, & Dinh, L.Q (2025). Digital Financial Inclusion and Sustainable Development in ASEAN: Insights from Monte Carlo Simulations. Economic Papers: A journal of applied economics and policy. https://doi.org/10.1111/1759-3441.70002

Huy, N. Q., & Dinh, L. Q. (2025a). Balancing Bank Profits With Sustainable Development Goals: Examining the Pivotal Role of Financial Stability. Sustainable Development, 33(S1), 1182-1199. https://doi.org/10.1002/sd.70057

Huy, N. Q., & Dinh, L. Q. (2025b). The Financial Inclusion-SDGS Nexus: Evidence from ASEAN. International Journal of Sustainable Development and Planning, 20(9), 4051-4061. https://doi.org/10.18280/ijsdp.200934

Huy, N. Q., & Loan, N. T. (2022). Factors affecting green credit development at commercial banks in Vietnam. International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies Vol 13 (12). http://doi.org/10.14456/ITJEMAST.2022.249

Huy, N. Q., Nga, L. P., & Tam, P. T. (2024). An Empirical Analysis of Bank Capital Adequacy Ratio in Vietnam: A Data Science Approach Using System Generalized Method of Moments. Journal of Applied Data Sciences, 5(1), 56-70. https://doi.org/10.47738/jads.v5i1.156

Huy, N., Nga, L., & Tam, P. (2023a). Applying Structural Equation Modeling for Accessing Mobile Banking Service Quality and Customer Satisfaction: A Case Study in Vietnam. Journal of Applied Data Sciences, 4(4), 346-362. doi: https://doi.org/10.47738/jads.v4i4.137

Huy, N., Nga, L., & Tam, P. (2023b). Applied Regression Modelling to Recommend Microfinance Development Policies. Journal of Applied Data Sciences, 4(4), 333-345. doi: https://doi.org/10.47738/jads.v4i4.139

Huy, N., & Tam, P. (2025). Applied Data Science for Analyzing the Mediating Role of Digital Transformation Influencing Banking Business Efficiency in Vietnam. Journal of Applied Data Sciences, 6(3), 2031-2045. doi: https://doi.org/10.47738/jads.v6i3.807

Laeven, M. L., & Valencia, M. F. (2018). Systemic banking crises revisited. International Monetary Fund.

Lenka, S. K., & Sharma, R. (2017). Does financial inclusion spur economic growth in India? The journal of developing areas, 51(3), 215-228.

Levy, R. (2020). Digital Module 11: Bayesian Psychometric Modeling https://ncme. elevate. commpartners. com. Educational Measurement: Issues and Practice, 39(1), 94-95.

Lewis, W. A. (1954). Economic development with unlimited supplies of labour.

Li, H., & Zou, H. f. (1998). Income inequality is not harmful for growth: theory and evidence. Review of development economics, 2(3), 318-334.

Li, Y., Wang, M., Liao, G., & Wang, J. (2022). Spatial Spillover Effect and Threshold Effect of Digital Financial Inclusion on Farmers’ Income Growth—Based on Provincial Data of China. Sustainability, 14(3), 1838.

Le Quoc, D., Nguyen Quoc, H., & Nguyen Van, H. (2025). Evaluating the influence of digital financial inclusion on financial crises and economic cycles: a Bayesian logistic regression insight. 33(2), 280-301. Journal of Financial Regulation and Compliance. https://doi.org/10.1108/JFRC-10-2024-0206

Le Quoc, D. (2024). The relationship between digital financial inclusion, gender inequality, and economic growth: dynamics from financial development. Journal of Business and Socio-Economic Development, 4(4), 370-388. https://doi.org/10.1108/JBSED-12-2023-0101

Majeed, M. T. (2016). Economic growth and income inequality nexus: an empirical analysis for Pakistan. Kashmir Economic Review, 25(1), 1-11.

Makina, D., & Walle, Y. M. (2019). Financial inclusion and economic growth: evidence from a panel of selected african countries. In Extending financial inclusion in Africa (pp. 193-210). Elsevier.

Malinen, T. (2012). Estimating the long-run relationship between income inequality and economic development. Empirical Economics, 42, 209-233.

Mankiw, N. G. (2004). Principles of Economics, 3rd international student edition. Mason: Thomson/South-Western.

Mckinnon, R. (1982). Money and capital in economic development brookings, institution, Washington, DC 1973. Vozes Ed., Rio de Janeiro.

Nizam, R., Abdul Karim, Z., Sarmidi, T., & Abdul Rahman, A. (2020). Financial inclusion and firms growth in manufacturing sector: A threshold regression analysis in selected ASEAN countries. Economies, 8(4), 80.

Nizam, R., Karim, Z. A., Rahman, A. A., & Sarmidi, T. (2020). Financial inclusiveness and economic growth: New evidence using a threshold regression analysis. Economic Research-Ekonomska Istraživanja, 33(1), 1465-1484.

Njindan Iyke, B., & Ho, S.-Y. (2017). Income inequality and growth: new insights from Italy.

Nguyen Quoc, H., Nguyen Van, H., & Le Quoc, D. (2025). Exploring the Determinants of Renewable Energy Consumption: A Bayesian Monte Carlo Simulation Analysis of Technology, Economic Growth, CO2 Emissions, and Digital Financial Inclusion. International Journal of Energy Economics and Policy, 15(5), 103–113. https://doi.org/10.32479/ijeep.20133

Panizza, U. (2002). Income inequality and economic growth: Evidence from American data. Journal of economic growth, 7, 25-41.

Partridge, M. D. (1997). Is inequality harmful for growth? Comment. The American Economic Review, 87(5), 1019-1032.

Perotti, R. (1996). Growth, income distribution, and democracy: What the data say. Journal of economic growth, 149-187.

Persson, T., & Tabellini, G. (1994). ls lnequality Harmful for Growth. American Economic Review, 84(3), 600-621.

Oanh T.T.K, Ha. N.T.H (2025). Enhancing Green Growth: Exploring the Influence of Fiscal Spending and Green Finance. Studia Universitatis „Vasile Goldiș” Arad – Economics Series, 35(3), 69-91https://doi.org/10.2478/sues-2025-0013

Quoc, H. N., Le Quoc, D., & Van, H. N. (2025a). Assessing digital financial inclusion and financial crises: The role of financial development in shielding against shocks. Heliyon, 11(1), e41231. https://doi.org/10.1016/j.heliyon.2024.e41231

Quoc, H. N., Van, H. N., & Le Quoc, D. (2025b). Unraveling the Nexus between Sustainable Development, Bank Profitability, and Loan Loss Provisions in Vietnam: A Bayesian Vector Autoregression Perspective. Research on World Agricultural Economy, 6(2), 123–139. https://doi.org/10.36956/rwae.v6i2.1444

Quoc, H.N., Van, H.N. & Le Quoc, D (2025c). Financial inclusion in the digital era and its impact on sustainable development across ASEAN countries through combined nonparametric methods. Discover Sustainability. https://doi.org/10.1007/s43621-025-02439-4

Quoc, H.N., Quoc, D.L. (2025). Linkages Between Primary Sector Value Added, Financial Development, and Economic Growth: Evidence from Vanuatu. Research on World Agricultural Economy. 6(4): 610-626. DOI: https://doi.org/10.36956/rwae.v6i4.2643

Rangel, L. A., Andrade, J., & Divino, J. A. (2008). Economic growth and income inequality in Brazil: Analyzing the comparable minimum areas. Retrieved March, 21, 2009.

Royuela, V., Veneri, P., & Ramos, R. (2019). The short-run relationship between inequality and growth: evidence from OECD regions during the Great Recession. Regional Studies, 53(4), 574-586.

Savvides, A., & Stengos, T. (2000). Income inequality and economic development: Evidence from the threshold regression model. Economics Letters, 69, 207-212. https://doi.org/10.1016/S0165-1765(00)00293-7

Scholl, N., & Klasen, S. (2019). Re-estimating the relationship between inequality and growth. Oxford Economic Papers, 71(4), 824-847.

Schumpeter, J. A. (1983). The Theory of Economic Development: An Inquiry Into Profits, Capital, Credit, Interest, and the Business Cycle. Transaction Books. https://books.google.co.in/books?id=-OZwWcOGeOwC

Sethi, D., & Acharya, D. (2018). Financial inclusion and economic growth linkage: Some cross country evidence. Journal of Financial Economic Policy, 10(3), 369-385.

Shahbaz, M. (2010). Income inequality‐economic growth and non‐linearity: A case of Pakistan. International Journal of Social Economics.

Shaw, E. S. (1973). Financial deepening in economic development.

Shen, Y., Hu, W., & Hueng, C. J. (2021). Digital Financial Inclusion and Economic Growth: A Cross-country Study. Procedia Computer Science, 187, 218-223. https://doi.org/https://doi.org/10.1016/j.procs.2021.04.054

Soava, G., Mehedintu, A., & Sterpu, M. (2020). Relations between income inequality, economic growth and poverty threshold: new evidences from EU countries panels. Technological and Economic Development of Economy, 26(2), 290-310.

Thach, N. N. (2020). How to explain when the ES is lower than one? A Bayesian nonlinear mixed-effects approach. Journal of Risk and Financial Management, 13(2), 21.

Thomas, A. E. (2017). Financial Accessibility and Economic Growth-Evidence from SAARC Countries. Thomas Asha E., M. Bhasi, R. Chandramouli (2017). Financial Accessibility and Economic Growth-Evidence from SAARC Countries. Contemplations on New Paradigms in Finance, Directorate of Public Relations and Publications, CUSAT, 32-52.

Van, H. N., & Le Quoc, D. (2024). Assessing the impact of digital financial inclusion on sustainable development goals: Analyzing differences by financial development levels across countries. Journal of the Knowledge Economy, 1-24. https://doi.org/10.1007/s13132-024-02515-6

Van, H. N., Quoc, H. N., & Le Quoc, D. (2025a). The role of green credit in promoting sustainable development in vietnam: evidence from quantile-ON-quantile regression. Research on World Agricultural Economy, 6(1), 88–99. https://doi.org/10.36956/rwae.v6i1.1399

Van, H. N., Quoc, H. N., & Le Quoc, D. (2025b). Towards Sustainable Development: Drivers From Financial and Institutional Development. Journal of Public Affairs, 25(3), e70073. https://doi.org/10.1002/pa.70073

Tuyet, N.T.B., Dinh, L.Q. (2025). The role of economic freedom and institutional quality in driving sustainable development: Comparative evidence from developed and developing economies. International Journal of Sustainable Development and Planning, 20(7), 2963-2972. https://doi.org/10.18280/ijsdp.200720

Wan, G., Lu, M., & Chen, Z. (2006). The inequality–growth nexus in the short and long run: Empirical evidence from China. Journal of Comparative Economics, 34(4), 654-667.

World Bank Group. (2013). Global financial development report 2014: Financial inclusion (Vol. 2). World Bank Publications.

Zondervan-Zwijnenburg, M., Peeters, M., Depaoli, S., & Van de Schoot, R. (2017). Where Do Priors Come From? Applying Guidelines to Construct Informative Priors in Small Sample Research. Research in Human Development, 14(4), 305-320. https://doi.org/10.1080/15427609.2017.1370966

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Publicado

2025-12-15

Cómo citar

Huy, N. Q., Loan, N. N. T. K., & Dinh, L. Q. (2025). TOO MUCH OF A GOOD THING? UNCOVERING THE OPTIMAL LEVEL OF FINANCIAL INCLUSION FOR GROWTH. Veredas Do Direito, 22, e223956. https://doi.org/10.18623/rvd.v22.n6.3956