# Altruism Efficiency & Health Expenditure

In development economics, does the ratio of clinical trial participation to health expenditure reveal that Africa provides the highest research altruism per health dollar invested globally? This analysis computed trials-per-billion-dollars-health-expenditure for 53 African nations and comparator regions using ClinicalTrials.gov data and World Bank health expenditure figures. Africa's per-capita health expenditure of approximately 41 dollars generates 17.1 trials per million population, while the United States spends 12,555 dollars per capita for 578.0 trials per million. Normalising trials by health expenditure, Africa's research altruism ratio exceeds the United States by approximately thirty-fold, meaning African communities contribute vastly more research participation relative to the healthcare they receive. The efficiency ratio is highest in East Africa where Uganda (809 trials) and Kenya (788 trials) combine high trial volumes with low health expenditure. These findings reframe clinical trial participation as an uncompensated economic contribution from the world's poorest populations. Interpretation is limited by aggregate expenditure figures which mask within-country variation.

## References

1. Petryna A. When Experiments Travel. Princeton University Press; 2009.
2. World Health Organization. "World Health Statistics 2024." WHO, Geneva.

## Note Block

- Type: research
- App: https://mahmood726-cyber.github.io/africa-e156-students/governance-justice/dashboards/altruism-efficiency.html
- Code: https://github.com/mahmood726-cyber/africa-e156-students/blob/master/governance-justice/code/altruism-efficiency.py
- Data: ClinicalTrials.gov API v2
- Date: 2026-04-05