what are the features of Islamic economic system?

Author cited below starts with capitalism and socialism, then goes here:

"Islam, on the other hand, believes in justice and fairness in the economic field. According to it, the man is God’s viceroy or deputy in overall divine scheme and he has been given limited rights of ownership of means of production. It recognises intervention of state in the economic activity for the purpose of ensuring welfare of its citizens. Abolition of interest, institution of sadaqat and Zakat, concept of lawful and unlawful, equitable distribution of wealth, prohibition of hoarding and stress on circulation of wealth, concern for well being of the poor are the distinctive features of the Islamic economic system."

Be careful what your presentation includes from posting found on the online search engines. I came across some postings that were not really about economics, but more of a religious testimony of an individual author about what he or she believes about Islam as it relates to economic concerns. You probably want to present a factual based report I assume, so be sure to use phrases like "some authors believe", especially when you are forced to use the information that has that kind of flavor to it.

The followers of Islam are required to lead a material life in such a way that it becomes a source of happiness and prosperity in the existing world. It proves to be source of benevolence for them in the next world. With this point in view we now define Islamic economic system in line with the technical definitions given for other system.

“Islamic economic system consists of institutions, organizations

And the social values by which natural, human and man made

Resources are used to produce, exchange, distribute and consume

Wealth/goods and services under the guiding principles of Islam

To achieve FALAH in this world and also after it”

From the definition it is clear that Muslims are required to follow the principles of Islam in all aspects of an economy. For example production of wealth should take place strictly with in the limits described by Islam to find that ultimate consumption pattern of the people is evolved in line with the injunctions of Islam

Interest rates are not stated openly, but instead incorporated into price of goods that are sold on credit.

Plus, abundance of oil makes governments less interested in supporting other industries.

Primarily because people extend zero-sum logic of oil production into other industries. I.e. they believe that profit of a firm always means a loss for people or government