This document provides an overview of different economic systems including conventional, capitalist, communist/socialist, mixed, and Islamic systems. It discusses key principles such as private property and profit motive in capitalism, nationalization and equality in communism/socialism, and a mixture of public and private ownership in mixed economies. The Islamic economic system is defined as studying human behavior in using resources for individual and community benefit according to Sharia principles like tauhid and khalifah. It aims to fulfill the maqasid or purposes of Sharia like preserving religion, intellect, life, property, and dignity. In conclusion, while businesses generally seek profit, Islamic economy emphasizes using resources for broader human and social welfare within Sharia guidelines.