The recently released fourth annual edition of the Brookings Institution’s Global MetroMonitor provides detailed data on economic activity for 300 metros worldwide.
The richest metro is Zurich, Switzerland, which generates $82,410 per person. The poorest is Kolkata, India, which produces $1,100 per person. Of the 20 richest metros, all but two are in North America or Europe. The poorest 20 are all in developing nations in Asia, the Middle East, Africa and Latin America.
Metros with the speediest rates of growth are almost all in the rapidly urbanising and developing parts of Asia and Eastern Europe, and the places with the slowest growth are mainly older de-industrialising centres in Europe.
Further details here.