Capitalism began when Thag, who was a good hunter, brought home two dinosaur steaks. His buddy Grog was a lousy hunter, but was good at making spears. Thag traded a dinosaur steak for a new spear.
Capitalism began when Thag declared that he owns all the dinosaurs, and anyone who hunts a dinosaur must pay him 10 percent of the meat as a tribute, or else he will stab them with his spear.