Lukman Hanif Arbi is an academic at the University of Indonesia (UI), Faculty of Business and Economics. Prior to joining UI, he taught at LaTrobe University, Melbourne, Australia, and Institut Teknologi Bandung, Bandung, Indonesia. He specializes in applying microeconomics to Islamic economics and finance. M. Ishaq Bhatti is a professor of Finance at UBD School of Business & Economics, University of Brunei Darussalam. Prior to joining UBD, he was a professor of Finance and Financial Data Analytics at SP Jain School of Global Management and professor of Finance and Financial Econometrics and the founding director of the Islamic Banking and Finance Programme at LaTrobe University, Australia.