Mobutu Sese Seko improved Zaire's mining and industries but corruption prevented repayment of international loans. In his final years of rule, Zaire was largely reduced to a BARTER economy. Barter is an informal trade or exchange of goods and services.
The answer is: Barter
Barter economy refers to an economic system which does not possess a universal medium of exchange (i.e : Currency).
In barter economy, everytime people want to obtain a product that they need, those people need to trade the needed product with other products that they already owned. (for example, if person A who is a chicken farmer want to obtain milk from person B, person A can trade the eggs that he produce for the milk that person B produce)
