Identifying and breaking up cartels is an important part of the competition policy overseen by [[antitrust laws]] in most countries, although proving the existence of a cartel is rarely easy, as firms are usually not so careless as to put agreements to [[collude]] on paper. The desire to form cartels is strong; however, most cartels are unstable. | Identifying and breaking up cartels is an important part of the competition policy overseen by [[antitrust laws]] in most countries, although proving the existence of a cartel is rarely easy, as firms are usually not so careless as to put agreements to [[collude]] on paper. The desire to form cartels is strong; however, most cartels are unstable. |