OECD Territorial Reviews - Istanbul, Turkey

Istanbul, the demographic and economic heart of Turkey, has gone through enormous changes over the past century. This mega-city of about 15 million inhabitants has seen its population increased more than tenfold since 1950. Over time, it has established itself as the industrial, financial and logistics centre of the country, producing almost one-third of the national output and absorbing the bulk of foreign direct investment. And, on the international scale, Istanbul ranks among the fastest grow