Answer:
By controlling supplies, OPEC nations were able to set the prices for oil.
Explanation:
OPEC which is an acronym of Organization of the Petroleum Exporting Countries was established in1960 by Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela and has been increased to fifteen countries presently through the controlling of supplies.
OPEC nations were able to set oil prices to have control over the demands and supplies. This helps the OPEC members, with the belief that controlling oil supplies leads to equal aggregate demands and supply thereby leaving no surplus of oil.
Hence, the collaboration generates more money for the members of OPEC
