How are cartels regulated?

Cartels in Denmark is regulated by The Danish Competition Act (DCA) which is harmonized with the treaty on the functioning of the European Union (TFEU). We will look at DCA: §6 - It is not legal to create a cartel. i. Fix purchase or selling prices or other trading conditions ii. Share markets or sources of supply iii. Undergo contracts that are accepted by agreeing to supplementary obligations with no relation to the contract. iv. To determine binding resale prices or ensure partners do not deviate from a recommended resale price. Overall, agreements that restrict competition are violations of §6.