Why do cities recover so fast (or not at all?)

Business Insider ranks the world's Top 15 of losing cities because of the recession. And the World Top 15 of fast recoveries. Take Istanbul. They were #44 (in growth) before the recession. They sank to #143 during the recession. And now they are the world's #1 in recovery after the recession. Why? Local employment is growing faster than anywhere else in the world, Business Insider says. Most Chinese cities rose, fell and rose again somehwere in the World Top 10. But Istanbul shows incredible resillience. Turkey has a young population, Turks are entrepreneurial, these things would probably matter. But what makes this city work is what most interests me. Should get hold of the report.