The economic system of Islam is regulated by the Quran and forbids activities like interest accumulation and speculation. Its main features include prohibiting riba (usury), not producing forbidden goods, allowing private ownership allocated accordingly, and requiring government approval. The goal is to achieve Al Falah. Advantages include banks not charging interest on loans but instead profit-sharing, and forbidding unfair practices. Disadvantages include not benefiting from falling interest rates and potential incoherence from interpretations leading to fraud and non-payment issues hindering growth.