Islamic economics refers to the has been called a field of literature that "identifies and promotes an economic order that conforms to Islamic scripture and traditions," and in the economic world an interest-free Islamic banking system. The literature originated in "the lates 1940s, and especially" after "the mid-1960s." The banking system developed during the 1970s. Islamic economic literatures' central features have been called "behavioral norms" derived from the Quran and Sunna, zakat tax as the basis of Islamic fiscal policy and prohibition of interest..