According to Moody's Investors Service, Turkey's Islamic banking assets are set to double within 10 years from a low level as government initiatives drive growth in the sector. Turkey's Islamic finance sector currently is smaller than other large Muslim countries. The main reason is the relatively small number of Islamic banks and their limited distribution networks within Turkey. Islamic banks are called participation banks in Turkey and are regulated by the Banking Regulation and Supervision Agency (BRSA). They are required by law to become a member of the Participation Banks Association of Turkey (PBAT). Between 2014 and 2015 the Turkish government established two new state-owned participation banks and a new one in 2019. Turkey's ambition is to establish Istanbul as a global financial center. It aims to raise the share of financial services in Turkish GDP to 6% by 2023 from 3% at the end of 2018.