Islamic institutions in Bahrain and Malaysia are developing a ratings scheme for Islamic endowments, or awqaf. The Bahrain-based Islamic International Rating Agency and the Malaysia-based International Institute of Islamic Waqf (IIIW) hope that greater accountability in the management of awqaf can help integrate them into Islamic financial markets. This could mobilize idle assets which are estimated to be valued between $100 billion and $1 trillion across the globe. Awqaf operate social projects such as hospitals, mosques and schools with donations received from Muslims. Most Awqaf do not disclose financial figures, but their underperformance is believed to be considerable since they have traditionally been run by administrators rather than investment managers.