The "Global MetroMonitor 2011: Volatility, Growth and Recovery" report by Brookings Institution includes the western province of Izmir at fourth place, Ankara at sixth and Istanbul at seventh.
Izvješće "Globalni MetroMonitor 2011: Nestabilnost, rast i oporavak", koje je objavio Brookings Institution, na četvrtom mjestu navodi zapadnu pokrajinu Izmir, Ankara je zauzela šesto mjesto, a Istanbul sedmo.