Associate Professor Necmettin Kizilkaya is an Associate Professor of Islamic Law, Istanbul University, Turkey. He has also worked as a visiting fellow at Princeton University, Department of Near Eastern Studies and as a Visiting Scholar at Columbia University, Department of Anthropology. He has written several books and had a number of papers published in refereed journals in the fields of Islamic economics and Islamic law.

Professor Toseef Azid has 35 years' experience in teaching at university level in different parts of the world (USA, UK, Brunei, Saudi Arabia and Pakistan) and research experience in forecasting models, development economics and Islamic economics. Currently he is working as Professor of Islamic Economics and Finance at College of Business, Qassim University, Saudi Arabia. He has published one book and more than 50 articles in refereed international journals as well as contributing numerous conference papers.