Prague Economic Papers 2025, 34(2):250-277 | DOI: 10.18267/j.pep.890

Policy uncertainty, inflation, and income inequality nexus: Does financial development matter?

Margaret Rutendo Magwedere ORCID..., Godfrey Marozva ORCID...
Margaret Rutendo Magwedere: Corresponding Author, University of South Africa, School of Economics and Financial Sciences, Department of Finance, Risk Management and Banking, 1 Preller Street Mucklenuek, Pretoria, South Africa
Godfrey Marozva: University of South Africa, School of Economics and Financial Sciences, Department of Finance, Risk Management and Banking, 1 Preller Street Mucklenuek, Pretoria, South Africa

Reducing income inequality is one of the goals under the Sustainable Development Goals. This study examines the intricate relationship between financial development, policy uncertainty, inflation, and income inequality. Panel data for African countries covering the period 2000-2022 were used in the analysis. The study used the economic policy uncertainty (EPU) index to examine its effects on income distribution. Previous studies indicated the possibility of asymmetric effects of inflation and EPU on income inequality. Hence, a dynamic non-linear Panel ARDL was employed to examine the asymmetric nature of the relationship between these variables. The study found that in the long run a symmetric EPU reduces income inequality for the countries in the study and this is confirmed by the asymmetric negative EPU that had a negative and significant impact on inequality. Income equality was found to deteriorate with an increase in inflation. Moreover, inequality was found to be more sensitive to negative changes in inflation relative to a positive change as inequality's elasticity to positive change was much lower as compared to negative changes. Under certain conditions and economic context, redistributive policies can alleviate inequality during a period of heightened EPU. By examining the theoretical frameworks and empirical evidence, the study highlights that for the countries in this study, policy uncertainty reduces inequality. Also, countries should continue with inflation targeting policies and if possible, aim for a lower rate relative to the previous period.

Keywords: inequality, policy uncertainty, inflation, financial development, autoregressive distributed lags, partial sums, structural breaks, asymmetric
JEL classification: C22, C23, D80, O16

Received: December 3, 2024; Revised: May 1, 2025; Accepted: May 14, 2025; Published: July 12, 2025  Show citation

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Rutendo Magwedere, M., & Marozva, G. (2025). Policy uncertainty, inflation, and income inequality nexus: Does financial development matter? Prague Economic Papers, 34(2), 250-277. doi: 10.18267/j.pep.890
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    References

    1. Abonazel, M.R., (2016). Bias correction methods for dynamic panel data models with fixed effects. https://doi.org/10.14419/ijamr.v6i2.7774 Go to original source...
    2. Acemoglu, D. and Zilibotti, F., (1997). Was Prometheus unbound by chance? Risk, diversification, and growth. Journal of Political Economy, 105(4), pp.709-751. https://doi.org/10.1086/262091 Go to original source...
    3. Adekoya, O.B., Ogunnusi, T.P. and Oliyide, J.A., (2021). Sector-by-sector non-renewable energy consumption shocks and manufacturing performance in the US: Analysis of the asymmetric issue with nonlinear ARDL and the role of structural breaks. Energy, 222, p.119947. https://doi.org/10.1016/j.energy.2021.119947 Go to original source...
    4. Aghion, P., Howitt, P. and Mayer-Foulkes, D., (2005). The effect of financial development on convergence: Theory and evidence. The Quarterly Journal of Economics, 120(1), pp.173-222. https://doi.org/10.1162/qjec.2005.120.1.173 Go to original source...
    5. Ahir, H., Bloom, N. and Furceri, D. (2022). The world uncertainty index. National Bureau of Economic Research. (No. w29763). Retrived from https://www.policyuncertainty.com/https://doi.org/10.3386/w29763 Go to original source...
    6. Ahmed, H.A. and Shadmani, H., (2024). Income inequality, unemployment, and government transfer: what do their dynamics tell us. Journal of Economics and Development. https://doi.org/10.1108/JED-10-(2023)-0195 Go to original source...
    7. Albert, J.F. and Gómez-Fernández, N., (2023). The effects of uncertainty shocks on income and wealth inequality. Journal of Economic Policy Reform, 26(4), pp. 370-400. https://doi.org/10.1080/17487870.2023.2238105 Go to original source...
    8. Al-Thaqeb, S.A. and Algharabali, B.G., (2019). Economic policy uncertainty: A literature review. The Journal of Economic Asymmetries, 20, p.e00133. https://doi.org/10.1016/j.jeca.2019.e00133 Go to original source...
    9. Apergis, N. and Payne, J.E., (2010). Renewable energy consumption and economic growth: evidence from a panel of OECD countries. Energy Policy, 38(1), pp.656-660. https://doi.org/10.1016/j.enpol.2009.09.002 Go to original source...
    10. Bahmani-Oskooee, M. and Hasanzade, M., (2022). Policy uncertainty and income distribution: Asymmetric evidence from state-level data in the United States. Bulletin of Economic Research, 74(1), pp.179-220. https://doi.org/10.1111/boer.12289 Go to original source...
    11. Bahmani-Oskooee, M. and Motavallizadeh-Ardakani, A., (2018). On the effects of income volatility on income distribution: Asymmetric evidence from state level data in the US. Research in Economics, 72(2), pp.224-239. https://doi.org/10.1016/j.rie.2018.01.002 Go to original source...
    12. Baker, S.R. and Bloom, N., (2013). Does uncertainty reduce growth? Using disasters as natural experiments (No. w19475). National Bureau of Economic Research. https://doi.org/10.3386/w19475 Go to original source...
    13. Baker, S.R., Bloom, N. and Davis, S.J., (2016). Measuring economic policy uncertainty. The Quarterly Journal of Economics, 131(4), pp.1593-1636. https://doi.org/10.1093/qje/qjw024 Go to original source...
    14. Biyase, M., & Chisadza, C. (2023). Symmetric and asymmetric effects of financial deepening on income inequality in South Africa. Development Southern Africa, 40(5), 961-978. https://doi.org/10.1080/0376835X.2022.2163226 Go to original source...
    15. Bernanke, B.S., (1983). Irreversibility, uncertainty, and cyclical investment. The Quarterly Journal of Economics, 98(1), pp. 85-106. https://doi.org/10.3386/w0502 Go to original source...
    16. Bloom, N., (2014). Fluctuations in uncertainty. Journal of Economic Perspectives, 28(2), pp.153-176. https://doi.org/10.1257/jep.28.2.153 Go to original source...
    17. Bond, S.R., (2002). Dynamic panel data models: a guide to micro data methods and practice. Portuguese Economic Journal, 1, pp.141-162. https://doi.org/10.1007/s10258-002-0009-9 Go to original source...
    18. Campomanes, I. P. (2024). The political economy of inequality, mobility and redistribution. Journal of Macroeconomics, 79, 103585. https://doi.org/10.1016/j.jmacro.2023.103585 Go to original source...
    19. Checchi, D. and García-Peñalosa, C., (2004). Risk and the distribution of human capital. Economics Letters, 82(1), pp.53-61. https://doi.org/10.1016/S0165-1765(03)00224-6 Go to original source...
    20. Farooq, R., Chisti, K.A., Rasheed, S. and Rahman, A., (2023). Economic policy uncertainty and income inequality: unveiling the effects of friendly business environment. Business Strategy & Development, 6(4), pp.805-816. https://doi.org/10.1002/bsd2.279 Go to original source...
    21. Foerster, A., (2014). The asymmetric effects of uncertainty. Economic Review, 99, pp.5-26.
    22. Glawe, L. and Wagner, H., (2024). Inflation and inequality: new evidence from a dynamic panel threshold analysis. International Economics and Economic Policy, 21(2), pp.297-309. https://doi.org/10.1007/s10368-023-00580-x Go to original source...
    23. Greenwood, J., & Jovanovic, B. (1990). Financial development, growth, and the distribution of income. Journal of Political Economy, 98(5, Part 1), 1076-1107. https://doi.org/10.1086/261720 Go to original source...
    24. Greenwood, R. and Scharfstein, D., (2013). The growth of finance. Journal of Economic Perspectives,27(2), pp.3-28. https://doi.org/10.1257/jep.27.2.3 Go to original source...
    25. Gujarati, D. N. and Porter, D. C. (2009). Basic Econometrics. 5th edition, New York: McGraw-Hill.
    26. Haini, H., Musa, S.F.P.D., Wei Loon, P. and Basir, K.H., (2023). Does unemployment affect the relationship between income inequality and food security? International Journal of Sociology and Social Policy, 43(1/2), pp.48-66. https://doi.org/10.1108/IJSSP-12-2021-0303 Go to original source...
    27. International Monetary Fund. (2021). Inequality in the time of Covid-19. Retrieved from https://www.imf.org/external/pubs/ft/fandd/2021/06/inequality-and-covid-19-ferreira.htm [Accessed 29 March 2024].
    28. International Monetary Fund. (2023). Fiscal Policy Can Help Tame Inflation and Protect the Most Vulnerable Retrieved from https://www.imf.org/en/Blogs/Articles/2023/04/03/fiscal-policy-can-help-tame-inflation-and-protect-the-most-vulnerable (Accessed 24 March 2025).
    29. Karaman, K. K., & Yildirim-Karaman, S. (2019). How does financial development alter the impact of uncertainty? Journal of Banking & Finance, 102, 33-42. https://doi.org/10.1016/j.jbankfin.2019.03.008 Go to original source...
    30. Kim, D. H., & Lin, S. C. (2023). Income inequality, inflation and financial development. Journal of Empirical Finance, 72, 468-487. https://doi.org/10.1016/j.jempfin.2023.04.008 Go to original source...
    31. Krasnopjorovs, O., (2022). Whether Low-Income Households and Retirees Face Higher Inflation? Evidence from Latvia. In New Challenges in Economic and Business Development-2022: Responsible Growth (Vol. 1, No. 1, pp. 148-153). Inna Romanova.
    32. Law, C. H., & Soon, S. V. (2020). The impact of inflation on income inequality: the role of institutional quality. Applied Economics Letters, 27(21), 1735-1738. https://doi.org/10.1080/13504851.2020.1717425 Go to original source...
    33. Loayza, N.V. and Ranciere, R., (2006). Financial development, financial fragility, and growth. Journal of Money, Credit and Banking, pp.1051-1076. https://doi.org/10.1353/mcb.2006.0060 Go to original source...
    34. Ma, H. and Hao, D., (2022). Economic policy uncertainty, financial development, and financial constraints: Evidence from China. International Review of Economics & Finance, 79, pp.368-386. https://doi.org/10.1016/j.iref.2022.02.027 Go to original source...
    35. Magwedere, M.R. and Marozva, G., (2022). Monetary policy and inequality links: should Central banks be concerned? Global Business Review, p. 09721509221115227. https://doi.org/10.1177/09721509221115227 Go to original source...
    36. Magwedere, M. R., & Marozva, G. (2024). Remittances and domestic investment nexus: Evidence from a PMG-ARDL approach. International Journal of Applied Economics, Finance and Accounting, 18(1), 33-42. https://doi.org/10.33094/ijaefa.v18i1.1280 Go to original source...
    37. Marozva, G. and Magwedere, M.R., (2021). Nexus between stock returns, funding liquidity and COVID-19. SPOUDAI-Journal of Economics and Business, 71(3/4), pp.86-100.
    38. Narayan, P.K., (2004). Fiji's tourism demand: the ARDL approach to cointegration. Tourism Economics, 10(2), pp.193-206. https://doi.org/10.5367/000000004323142425 Go to original source...
    39. Panopoulou, E., & Pittis, N. (2004). A comparison of autoregressive distributed lag and dynamic OLS cointegration estimators in the case of a serially correlated cointegration error. The Econometrics Journal, 7(2), 585-617. https://doi.org/10.1111/j.1368-423X.2004.00145.x Go to original source...
    40. Pastor, L. and Veronesi, P., (2012). Uncertainty about government policy and stock prices. The journal of Finance, 67(4), pp.1219-1264. https://doi.org/10.1111/j.1540-6261.2012.01746.x Go to original source...
    41. Pedroni, P., (1999). Critical values for cointegration tests in heterogeneous panels with multiple regressors. Oxford Bulletin of Economics and Statistics, 61(S1), pp.653-670. https://doi.org/10.1111/1468-0084.0610s1653 Go to original source...
    42. Pedroni, P., (2004). Panel cointegration: asymptotic and finite sample properties of pooled time series tests with an application to the PPP hypothesis. Econometric Theory, 20(3), pp.597-625. https://doi.org/10.1017/S0266466604203073 Go to original source...
    43. Pesaran, M. H., Shin, Y., & Smith, R. J. (2001). Bounds testing approaches to the analysis of level relationships. Journal of Applied Econometrics, 16(3), 289-326. https://doi.org/10.1002/jae.616 Go to original source...
    44. Pesaran, M.H., Shin, Y. and Smith, R.P., (1999). Pooled mean group estimation of dynamic heterogeneous panels. Journal of the American statistical Association, 94(446), pp.621-634. https://doi.org/10.1080/01621459.1999.10474156 Go to original source...
    45. Piketty, T., (2014). Capital in the Twenty-First Century. Harvard University Press. https://doi.org/10.4159/9780674369542 Go to original source...
    46. Shabir, M., Jiang, P., Hashmi, S.H. and Bakhsh, S., (2022). Non-linear nexus between economic policy uncertainty and bank lending. International Review of Economics & Finance, 79, pp.657-679. https://doi.org/10.1016/j.iref.2022.02.016 Go to original source...
    47. Seddighi, H. (2013). Introductory econometrics: a practical approach. Routledge. New York. https://doi.org/10.4324/9780203157688 Go to original source...
    48. Shin, Y., Yu, B. and Greenwood-Nimmo, M., (2014). Modelling asymmetric cointegration and dynamic multipliers in a nonlinear ARDL framework. Festschrift in honor of Peter Schmidt: Econometric Methods and Applications, pp.281-314. https://doi.org/10.1007/978-1-4899-8008-3_9 Go to original source...
    49. Smales, L. A. (2020). Examining the relationship between policy uncertainty and market uncertainty across the G7. International Review of Financial Analysis, 71, 101540. https://doi.org/10.1016/j.irfa.2020.101540 Go to original source...
    50. Stack, S., (1980). The political economy of income inequality: A comparative analysis. Canadian Journal of Political Science/Revue Canadienne de Science Politique, 13(2), pp.273-286. https://doi.org/10.1017/S0008423900033011 Go to original source...
    51. Theophilopoulou, A., (2022). The impact of macroeconomic uncertainty on inequality: An empirical study for the United Kingdom. Journal of Money, Credit and Banking, 54(4), pp.859-884. https://doi.org/10.1111/jmcb.12852 Go to original source...
    52. Tobin, J., (1969). A general equilibrium approach to monetary theory. Journal of Money, Credit and Banking, 1(1), pp.15-29. https://doi.org/10.2307/1991374 Go to original source...
    53. Zhang, R.J. and Razzaq, A., (2022). Influence of economic policy uncertainty and financial development on renewable energy consumption in the BRICST region. Renewable Energy, 201, pp.526-533. https://doi.org/10.1016/j.renene.2022.10.107Author Contributions: Conceptualization, Formal analysis, Methodology, Supervision, Writing-original draft, Writing-review & editing-all authors contributed equally. Go to original source...
    54. Funding: This research received no external funding.Institutional Review Board Statement: Not applicable.Informed Consent Statement: Not applicable.Data Availability Statement: This study analysed publicly available datasets. These datasets can be accessed here: (World Development Indicators: https://databank.worldbank.org/source/worlddevelopment-indicators: accessed on 28 March 2024).Conflicts of Interest: The authors have no conflict of interest to declare

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