Political harms
Image by Raphael Whittle
Relationship between extreme wealth and political harms
Extreme wealth can be politically harmful because it allows a small elite to dominate democratic processes through lobbying, campaign financing, privileged access, and control of media, shaping policies to serve their interests rather than the public good. This concentration of money and influence undermines political equality, weakens accountability, erodes the rule of law, and enables regulatory capture, ultimately threatening democratic stability and citizens' rights.Summary
| Certainty of evidence | Strength of relationship |
|---|---|
Medium / StrongEvidence is largely based on robust but correlational studies, with stronger causal evidence of the mechanisms linking extreme wealth and political harms - e.g. around political access, impacts of campain finance and electoral influence, policy bias and representational inequalities. The literature around the impact of wealth levels and wealth concentration on political harms is still at an early stage of development, with the most convincing evidence around harms to democratic functioning, institutional quality and policy capture. |
StrongWhile there is no consensus in the literature, the strongest studies point to a robust, linear relationship between democratic harms and the concentration of wealth at the very top of the distribution, with effects being strongest when measured using the wealth shares held by the top 1%, 0.1%, or 0.01% of the population. |
No consensus on a threshold.
- The strength of democratic institutions itself (e.g. strength of the rule of law, judicial independence, electoral integrity)
- Campaign finance and electoral regulations (including rules on political donations, campaign expenditure limits, transparency requirements etc)
- Institutional pathways to political influence (including appointment processes for legislative and advisory bodies, access to policymakers)
- Country political history (e.g. historical development of institutions and historical elite-state relations)
- National development and economic conditions shape whether inequality contributes to democratic fragility and backsliding
- Economic openness and capital mobility, including capital account openness, affects the impact of politically connected wealth
- Media market structure and concentration, while structural media market shifts shape incentives for media ownership
- More evidence needed on the relationship between wealth levels and propensity to make (and size of) political contributions - e.g. At what level of wealth do individuals become major political donors?
- Emerging evidence links wealth inequality democratic backsliding, further studies could estimate the predicted risk of democratic erosion for different levels of wealth share held by the top 10%, 1%, 0.1%
- More, non-US-centric evidence - e.g. Inequalities in political and campaigns donations is found in many countries, but most studies of the impacts of money in politics are US-centric
- More research needed on the effect of wealth inequality on corruption (as distinct from income and as distinct from effect of corruption on wealth)
On democratic functioning and institutional quality:
- Rau, E. G., & Stokes, S. (2025). Income inequality and the erosion of democracy in the twenty-first century. Proceedings of the National Academy of Sciences, 122(1), e2422543121.
- Korman JG (2023), "Assessing the impact of wealth inequality on state capture in Latin America". International Journal of Development Issues, Vol. 22 No. 2 pp. 198-213
- Houle, C. (2018). Does economic inequality breed political inequality? Democratization, 25(8), 1500-1518.
On the impact of money on policy capture and political access:
- Kalla, J. L., & Broockman, D. E. (2016). Campaign contributions facilitate access to congressional officials: A randomized field experiment. American Journal of Political Science, 60(3), 545-558.
- Ferguson, T., Jorgensen, P., & Chen, J. (2017). Fifty shades of green: High finance, political money, and the U.S. Congress. Roosevelt Institute.
