Regional Economic Differences: Investment Attractiveness of Istanbul, Izmir, Ankara, and Border Regions Economy Regional Economic Differences: Investment Attractiveness of Istanbul, Izmir, Ankara, and Border Regions Turkish Business World 22 January 2026 Analysis of infrastructure, resource costs, and market access for starting business in different regions. Read More Read more about Regional Economic Differences: Investment Attractiveness of Istanbul, Izmir, Ankara, and Border Regions