Cartel
  
Yes, yes, we know what you're thinking...what do Pablo Escobar, El Chapo and drug trafficking have to do with finance terms. Well a lot. Much like the infamous drug cartels of the 70s, this term refers to a group of people or businesses (or even countries),who come together to regulate and manipulate the supply and/or price of a specific product or service.
Take OPEC, for example. Although they don't run an illegal drug empire, the world's largest legal (protected by U.S foreign trade laws) cartel was formed by 14 oil producing companies to control, manipulate and regulate oil supply. But it does kinda make it difficult for a poor mountaineer named Jed to get in on the business.