Islamic entities known as participation banks offer bonds with potentially greater upside and more stability than standard government debt. According to a recent report from Standard & Poor’s, participation banks doubled their share of the country’s overall banking assets to about 5% between 2005 to 2015. Turkish President Recep Tayyip Erdogan’s support for further integration of Islamic law into all walks of life means participation banks are likely to grow. The system’s assets could reach some $300 billion by 2025, according to the Participation Banks Association of Turkey.