Answer:
One form of collusion is price fixing
Explanation:
collusion is said to be when two or more entities come up with an agreement to achieve a purpose which is illegal by law by denying people of the rights and this is done mostly by rival groups coming together for their self gains. and one of these form of collusion is price fixing as seen with OPEC (a body that fixes oil prices ) they are a formal kind of collusion cartel
