What are the negative impacts of cartels that have led to their prohibition in many countries?

[Suba]

Legally, cartel practices are prohibited in many countries by antitrust regulations, so businesses found to operate cartels are subject to imprisonment and fines.

A cartel is a form of cooperation/agreement, either formal or informal, between several business entities to control the market, regulate prices, and increase profits. There are several types of cartels, such as those based on territory, price, production, etc.