
The number of doctors per thousand people is one of the most honest maps of global inequality
Doctors per capita is an underrated indicator of a country's well-being. It shows who has managed to build up human capital and who lives in a constant shortage of qualified staff. According to Our World in Data, rich countries have about ten times as many doctors per person as poor ones. The global average is around 1.9 doctors per thousand people, while in low-income countries it's just a fifth of that.
A doctor is one of the most expensive specialists an economy can produce. Their training takes decades of study, a modern university base, clinical infrastructure and a state able to fund all of it for years. So the number of doctors in a country is essentially the accumulated result of decades of economic development, not something that can be scaled up quickly.
What follows is no longer OWID's statistic but the mechanism behind it. Rich countries have long imported not just raw materials and technology but people. Doctors trained in India, Nigeria, Egypt, Pakistan or the Philippines end up working in the US, Britain, Germany and the Gulf states. The result is a kind of tax on poverty: less developed states pay to train a specialist, and a richer economy reaps the fruits of their knowledge. The outflow is stark enough that the WHO keeps a separate list of countries where the shortage of medics is critical and from which they should not be actively recruited.
That's why the map of doctor coverage reads like a map of inequality. It shows not only the difference in the quality of medicine but a country's ability to hold on to its own qualified people. In the 21st century that's one of the main marks of a country that has made it.