Izvještaj Brookings instituta "Global MetroMonitor 2011: nestabilnost, rast i oporavak" obuhvaća zapadnu provinciju Izmir na četvrtom mjestu, Ankaru na šestom i Istambul na sedmom mjestu.
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.