Domain: Institutional Quality and Economic Development
How formal and informal institutions — property rights, rule of law, corruption control, governance — shape long-run economic development outcomes across countries.
Temporal scope: 1960-present | Population: Sovereign states (country-year)
Key Findings
- Once institutions are instrumented, geography has no direct effect and trade is insignificant. Institutions dominate. (positive, strong)
- Strong correlation (r~0.80) between rule of law and GDP per capita across 200+ countries, though causal inference requires instrumentation. (positive, moderate)
- Transaction costs are a key mechanism through which institutions affect economic performance. Efficient institutions lower transaction costs, enabling more complex exchange and greater specialization, which drives economic growth. (positive, foundational)
- Rule of law strongly predicts cross-country income differences, explaining over 50 percent of variance when instrumented with colonial settler mortality, establishing institutions as a fundamental cause of development (positive, strong)
- 1 SD improvement in corruption index associated with +4 pp investment rate and +0.5 pp annual growth. (negative, strong)
- IV/2SLS using settler mortality shows institutions have a large causal effect on income per capita. 1 SD improvement in expropriation risk ~ 1+ log point increase in income. (positive, strong)
- ICRG-based property rights measures have substantially larger positive association with investment and growth than political freedom indices. (positive, strong)
- Government effectiveness is positively associated with public service delivery quality across all country income groups, with stronger effects in developing countries (positive, strong)