From the Islamic finance industry perspective, an important criterion for the industry wide adoption of any benchmark, particularly one that is published every business day, is the simplicity, reliability and robustness of its methodology.
As a substitute to T-bills, the governments can issue Treasury Sukuk Ijarah Bills to source funds. For profit benchmarking, data from trading operations can be used in which the government sets prices to reflect its target profit rate knowing the cost as well as the selling price. This target profit rate can become a benchmark for issuing Treasury Sukuk Ijarah Bills and affect the other rates of returns in Islamic short term financing instruments.
From the Islamic finance industry perspective, an important criterion for the industry wide adoption of any benchmark, particularly one that is published every business day, is the simplicity, reliability and robustness of its methodology.
Growth rate of Gross Domestic Product (GDP) is one of the most frequently suggested alternative for Islamic finance transactions. GDP measures value of production in a given year. This alternative avoids reference to interest based benchmarks and reflects pure economic activities in a comprehensive way covering output of all sectors plus prices.
Repo transactions are not compliant with Islamic principles due to the buyback nature of transaction plus the use of interest based securities as underlying assets. However, in commercial contracts where Islamic banks would like to earn return, there is need for a pricing benchmark to mitigate risk as well as ensure transparency in the contract.
Islamic Economics Project 