The economy of the Organisation of Islamic Cooperation (OIC) combines the economies of 57 member states. 49 are predominantly Muslim states. The other 8 have large Muslim minorities. Those 57 countries have a combined GDP (at Purchasing power parity; PPP) of USD 18,600 billion. The richest country on the basis of GDP per capita at PPP is United Arab Emirates. On basis of per capita GDP, Qatar is richest country with incomes exceeding US$108,000 per capita. According to a report by Salam Standard, the GDP impact of the world’s Muslim tourism sector exceeded $138 billion in 2015, generating 4.3 million jobs and contributing more than $18 billion in tax revenue.
Statistics
*Observer nations in italic
References
Economy of the Organisation of Islamic Cooperation Wikipedia(Text) CC BY-SA