IDEAS home Printed from https://ideas.repec.org/a/eee/wdevel/v199y2026ics0305750x25003365.html

Wealth inequality and economic growth: Evidence from the World Inequality Database

Author

Listed:
  • Steenbrink, Rachel
  • Skali, Ahmed

Abstract

Although it is often argued that wealth inequality matters more for economic growth than income inequality, this relationship has rarely been studied empirically, with a few exceptions covering a very restricted country sample or short timeframe. Leveraging hitherto unexploited wealth inequality data from the World Inequality Database, covering a panel of 165 countries between 1995 and 2019, we document a negative and statistically significant relationship between wealth inequality and economic growth. A one standard deviation increase in the wealth Gini coefficient within countries is associated with a 0.34 percentage points decline in growth rates. Instrumental variables support a causal interpretation of the results. The results survive a large battery of robustness checks, and we find no evidence to suggest a heterogeneous relationship.

Suggested Citation

  • Steenbrink, Rachel & Skali, Ahmed, 2026. "Wealth inequality and economic growth: Evidence from the World Inequality Database," World Development, Elsevier, vol. 199(C).
    • Handle: RePEc:eee:wdevel:v:199:y:2026:i:c:s0305750x25003365
    DOI: 10.1016/j.worlddev.2025.107250
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0305750X25003365
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.worlddev.2025.107250?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Christopher F Baum & Mark E. Schaffer & Steven Stillman, 2003. "Instrumental variables and GMM: Estimation and testing," Stata Journal, StataCorp LLC, vol. 3(1), pages 1-31, March.
    2. Mariacristina De Nardi & Giulio Fella, 2017. "Saving and Wealth Inequality," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 26, pages 280-300, October.
    3. Robert C. Feenstra & Robert Inklaar & Marcel P. Timmer, 2015. "The Next Generation of the Penn World Table," American Economic Review, American Economic Association, vol. 105(10), pages 3150-3182, October.
    4. Lee, Byoungchan, 2023. "Wealth Inequality and Endogenous Growth," Journal of Monetary Economics, Elsevier, vol. 133(C), pages 132-148.
    5. James K. Galbraith, 2019. "Sparse, Inconsistent and Unreliable: Tax Records and the World Inequality Report 2018," Development and Change, International Institute of Social Studies, vol. 50(2), pages 329-346, March.
    6. Jayati Ghosh, 2019. "The Uses and Abuses of Inequality," Journal of Human Development and Capabilities, Taylor & Francis Journals, vol. 20(2), pages 181-196, April.
    7. Easterly, William, 2007. "Inequality does cause underdevelopment: Insights from a new instrument," Journal of Development Economics, Elsevier, vol. 84(2), pages 755-776, November.
    8. Thomas Piketty & Emmanuel Saez, 2003. "Income Inequality in the United States, 1913–1998," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 118(1), pages 1-41.
    9. Madsen, Jakob B. & Islam, Md. Rabiul & Doucouliagos, Hristos, 2018. "Inequality, financial development and economic growth in the OECD, 1870–2011," European Economic Review, Elsevier, vol. 101(C), pages 605-624.
    10. Thomas Piketty & Gabriel Zucman, 2014. "Capital is Back: Wealth-Income Ratios in Rich Countries 1700–2010," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 129(3), pages 1255-1310.
    11. Andrew Berg & Jonathan D. Ostry & Charalambos G. Tsangarides & Yorbol Yakhshilikov, 2018. "Redistribution, inequality, and growth: new evidence," Journal of Economic Growth, Springer, vol. 23(3), pages 259-305, September.
    12. Yehisen Urbina & Nestor Garza & Rafael Viana, 2024. "Land concentration and food insecurity: the Colombian case," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 16(4), pages 1031-1044, August.
    13. Fischer, Stanley, 1993. "The role of macroeconomic factors in growth," Journal of Monetary Economics, Elsevier, vol. 32(3), pages 485-512, December.
    14. Benhabib, Jess & Spiegel, Mark M., 1994. "The role of human capital in economic development evidence from aggregate cross-country data," Journal of Monetary Economics, Elsevier, vol. 34(2), pages 143-173, October.
    15. Bharathi, Naveen & Malghan, Deepak & Mishra, Sumit & Rahman, Andaleeb, 2024. "Status inequality and public goods," World Development, Elsevier, vol. 176(C).
    16. Gustavo A. Marrero & Juan G. Rodríguez, 2023. "Unfair inequality and growth," Scandinavian Journal of Economics, Wiley Blackwell, vol. 125(4), pages 1056-1092, October.
    17. Cecilia Garcia-Penalosa & Eve Caroli & Philippe Aghion, 1999. "Inequality and Economic Growth: The Perspective of the New Growth Theories," Journal of Economic Literature, American Economic Association, vol. 37(4), pages 1615-1660, December.
    18. Levine, Ross & Renelt, David, 1992. "A Sensitivity Analysis of Cross-Country Growth Regressions," American Economic Review, American Economic Association, vol. 82(4), pages 942-963, September.
    19. Martin Ravallion, 2012. "Why Don't We See Poverty Convergence?," American Economic Review, American Economic Association, vol. 102(1), pages 504-523, February.
    20. Roine, Jesper & Waldenström, Daniel, 2014. "Long-Run Trends in the Distribution of Income and Wealth," Working Paper Series 1021, Research Institute of Industrial Economics.
    21. Kirsten Stoebenau & Sangeetha Madhavan & Emily Smith‐Greenaway & Heide Jackson, 2021. "Economic Inequality and Divergence in Family Formation in Sub‐Saharan Africa," Population and Development Review, The Population Council, Inc., vol. 47(4), pages 887-912, December.
    22. repec:hal:pseose:halshs-01109372 is not listed on IDEAS
    23. Alesina, Alberto & Perotti, Roberto, 1996. "Income distribution, political instability, and investment," European Economic Review, Elsevier, vol. 40(6), pages 1203-1228, June.
    24. Martinangeli, Andrea F.M. & Windsteiger, Lisa, 2024. "Inequality shapes the propagation of unethical behaviours: Cheating responses to tax evasion along the income distribution," Journal of Economic Behavior & Organization, Elsevier, vol. 220(C), pages 135-181.
    25. Francisco H. G. Ferreira & Shaohua Chen & Andrew Dabalen & Yuri Dikhanov & Nada Hamadeh & Dean Jolliffe & Ambar Narayan & Espen Beer Prydz & Ana Revenga & Prem Sangraula & Umar Serajuddin & Nobuo Yosh, 2016. "A global count of the extreme poor in 2012: data issues, methodology and initial results," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 14(2), pages 141-172, June.
    26. Alberto Alesina & Dani Rodrik, 1994. "Distributive Politics and Economic Growth," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 109(2), pages 465-490.
    27. Bagchi, Sutirtha & Svejnar, Jan, 2015. "Does wealth inequality matter for growth? The effect of billionaire wealth, income distribution, and poverty," Journal of Comparative Economics, Elsevier, vol. 43(3), pages 505-530.
    28. Marrero, Gustavo A. & Rodríguez, Juan G., 2013. "Inequality of opportunity and growth," Journal of Development Economics, Elsevier, vol. 104(C), pages 107-122.
    29. Andrea Colciago & Anna Samarina & Jakob de Haan, 2019. "Central Bank Policies And Income And Wealth Inequality: A Survey," Journal of Economic Surveys, Wiley Blackwell, vol. 33(4), pages 1199-1231, September.
    30. Oded Galor & Joseph Zeira, 1993. "Income Distribution and Macroeconomics," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 60(1), pages 35-52.
    31. Emmanuel Saez & Gabriel Zucman, 2016. "Editor's Choice Wealth Inequality in the United States since 1913: Evidence from Capitalized Income Tax Data," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 131(2), pages 519-578.
    32. repec:dau:papers:123456789/10091 is not listed on IDEAS
    33. Milanovic, Branko, 2024. "The three eras of global inequality, 1820–2020 with the focus on the past thirty years," World Development, Elsevier, vol. 177(C).
    34. Nickell, Stephen J, 1981. "Biases in Dynamic Models with Fixed Effects," Econometrica, Econometric Society, vol. 49(6), pages 1417-1426, November.
    35. James B. Davies & Susanna Sandström & Anthony Shorrocks & Edward N. Wolff, 2011. "The Level and Distribution of Global Household Wealth," Economic Journal, Royal Economic Society, vol. 121(551), pages 223-254, March.
    36. Manea, Roxana Elena & Piraino, Patrizio & Viarengo, Martina, 2023. "Crime, inequality and subsidized housing: Evidence from South Africa," World Development, Elsevier, vol. 168(C).
    37. Charles I. Jones, 2015. "Pareto and Piketty: The Macroeconomics of Top Income and Wealth Inequality," Journal of Economic Perspectives, American Economic Association, vol. 29(1), pages 29-46, Winter.
    38. Barro, Robert J, 2000. "Inequality and Growth in a Panel of Countries," Journal of Economic Growth, Springer, vol. 5(1), pages 5-32, March.
    39. Jonathan Temple, 1999. "The New Growth Evidence," Journal of Economic Literature, American Economic Association, vol. 37(1), pages 112-156, March.
    40. Florian Dorn & Clemens Fuest & Niklas Potrafke, 2022. "Trade openness and income inequality: New empirical evidence," Economic Inquiry, Western Economic Association International, vol. 60(1), pages 202-223, January.
    41. Meltzer, Allan H & Richard, Scott F, 1981. "A Rational Theory of the Size of Government," Journal of Political Economy, University of Chicago Press, vol. 89(5), pages 914-927, October.
    42. Gradín, Carlos, 2024. "Revisiting the trends in global inequality," World Development, Elsevier, vol. 179(C).
    43. Radelet Steven & Sachs Jeffrey & Lee Jong-Wha, 2001. "The Determinants and Prospects of Economic Growth in Asia," International Economic Journal, Taylor & Francis Journals, vol. 15(3), pages 1-29.
    44. David Castells‐Quintana & Vicente Royuela & Fabian Thiel, 2019. "Inequality and sustainable development: Insights from an analysis of the human development index," Sustainable Development, John Wiley & Sons, Ltd., vol. 27(3), pages 448-460, May.
    45. Annamaria Lusardi & Pierre-Carl Michaud & Olivia S. Mitchell, 2017. "Optimal Financial Knowledge and Wealth Inequality," Journal of Political Economy, University of Chicago Press, vol. 125(2), pages 431-477.
    46. Blundell, Richard & Bond, Stephen, 1998. "Initial conditions and moment restrictions in dynamic panel data models," Journal of Econometrics, Elsevier, vol. 87(1), pages 115-143, August.
    47. Andrés F. Castro Torres & Ewa Batyra & Mikko Myrskylä, 2022. "Income Inequality and Increasing Dispersion of the Transition to First Birth in the Global South," Population and Development Review, The Population Council, Inc., vol. 48(1), pages 189-215, March.
    48. Windmeijer, Frank, 2005. "A finite sample correction for the variance of linear efficient two-step GMM estimators," Journal of Econometrics, Elsevier, vol. 126(1), pages 25-51, May.
    49. Lee, Woojin & Roemer, John E, 1998. "Income Distribution, Redistributive Politics, and Economic Growth," Journal of Economic Growth, Springer, vol. 3(3), pages 217-240, September.
    50. Hartog, Joop & Oosterbeek, Hessel, 1998. "Health, wealth and happiness: why pursue a higher education?," Economics of Education Review, Elsevier, vol. 17(3), pages 245-256, June.
    51. Smriti Rao & Kade Finnoff, 2015. "Marriage Migration and Inequality in India, 1983–2008," Population and Development Review, The Population Council, Inc., vol. 41(3), pages 485-505, September.
    52. Islam, Md. Rabiul & McGillivray, Mark, 2020. "Wealth inequality, governance and economic growth," Economic Modelling, Elsevier, vol. 88(C), pages 1-13.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Islam, Md. Rabiul & McGillivray, Mark, 2020. "Wealth inequality, governance and economic growth," Economic Modelling, Elsevier, vol. 88(C), pages 1-13.
    2. Bagchi, Sutirtha & Svejnar, Jan, 2015. "Does wealth inequality matter for growth? The effect of billionaire wealth, income distribution, and poverty," Journal of Comparative Economics, Elsevier, vol. 43(3), pages 505-530.
    3. Steenbrink, Rachel & Skali, Ahmed, 2024. "Wealth Inequality and Economic Growth: Evidence from the World Inequality Database," GLO Discussion Paper Series 1417, Global Labor Organization (GLO).
    4. Gründler, Klaus & Scheuermeyer, Philipp, 2015. "Income inequality, economic growth, and the effect of redistribution," W.E.P. - Würzburg Economic Papers 95, University of Würzburg, Department of Economics.
    5. Islam, Md. Rabiul, 2018. "Wealth inequality, democracy and economic freedom," Journal of Comparative Economics, Elsevier, vol. 46(4), pages 920-935.
    6. Roberto Dell'Anno & Adalgiso Amendola, 2015. "Social Exclusion and Economic Growth: An Empirical Investigation in European Economies," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 61(2), pages 274-301, June.
    7. Andrew Berg & Jonathan D. Ostry & Charalambos G. Tsangarides & Yorbol Yakhshilikov, 2018. "Redistribution, inequality, and growth: new evidence," Journal of Economic Growth, Springer, vol. 23(3), pages 259-305, September.
    8. Gründler, Klaus & Scheuermeyer, Philipp, 2018. "Growth effects of inequality and redistribution: What are the transmission channels?," Journal of Macroeconomics, Elsevier, vol. 55(C), pages 293-313.
    9. Gustavo A. Marrero & Juan Gabriel Rodríguez, 2019. "Inequality and growth: The cholesterol hypothesis," Working Papers 501, ECINEQ, Society for the Study of Economic Inequality.
    10. Kim, Dong-Hyeon & Lin, Shu-Chin, 2023. "Income inequality, inflation and financial development," Journal of Empirical Finance, Elsevier, vol. 72(C), pages 468-487.
    11. Ademola Obafemi Young, 2019. "Growth Impacts of Income Inequality: Empirical Evidence From Nigeria," Research in World Economy, Research in World Economy, Sciedu Press, vol. 10(3), pages 226-262, December.
    12. Njangang, Henri & Asongu, Simplice A. & Tadadjeu, Sosson & Nounamo, Yann & Kamguia, Brice, 2022. "Governance in mitigating the effect of oil wealth on wealth inequality: A cross-country analysis of policy thresholds," Resources Policy, Elsevier, vol. 76(C).
    13. José Carlos Coelho & José Alves, 2021. "How inequality drives growth: an investigation of the transmission channels for OECD countries," Working Papers REM 2021/0194, ISEG - Lisbon School of Economics and Management, REM, Universidade de Lisboa.
    14. Anyanwu, Ugochukwu Michael & Anyanwu, Amarachukwu Anthony & Cieślik, Andrzej, 2021. "Does abundant natural resources amplify the negative impact of income inequality on economic growth?," Resources Policy, Elsevier, vol. 74(C).
    15. Njangang, Henri & Beleck, Alim & Tadadjeu, Sosson & Kamguia, Brice, 2022. "Do ICTs drive wealth inequality? Evidence from a dynamic panel analysis," Telecommunications Policy, Elsevier, vol. 46(2).
    16. Henri Njangang & Alim Beleck & Sosson Tadadjeu & Brice Kamguia, 2021. "Do ICTs drive wealth inequality? Evidence from a dynamic panel analysis," Working Papers of the African Governance and Development Institute. 21/057, African Governance and Development Institute..
    17. Stimpfle, Alexander & Stadelmann, David, 2015. "The Impact of Fundamental Development Factors on Different Income Groups: International Evidence," VfS Annual Conference 2015 (Muenster): Economic Development - Theory and Policy 113128, Verein für Socialpolitik / German Economic Association.
    18. Kim, Dong-Hyeon & Liu, Peiyao & Lin, Shu-Chin, 2025. "Nonlinearity in the nexus between financial development and wealth inequality," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 99(C).
    19. Ferreira, Francisco H. G. & Lakner, Christoph & Lugo, Maria Ana & Ozler, Berk, 2014. "Inequality of opportunity and economic growth : a cross-country analysis," Policy Research Working Paper Series 6915, The World Bank.
    20. Gravina, Antonio Francesco & Lanzafame, Matteo, 2021. "Finance, globalisation, technology and inequality: Do nonlinearities matter?," Economic Modelling, Elsevier, vol. 96(C), pages 96-110.

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    JEL classification:

    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • O10 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - General
    • O47 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - Empirical Studies of Economic Growth; Aggregate Productivity; Cross-Country Output Convergence

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:wdevel:v:199:y:2026:i:c:s0305750x25003365. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/worlddev .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.