Forming monopoly usually requires some kind of help from government, like patent and regulatory laws that make it harder for competitors to enter the market. W

Forming monopoly usually requires some kind of help from government, like patent and regulatory laws that make it harder for competitors to enter the market. Without it fighting competition is like figthing mythical hydra: for one competitior you've driven bankrupt there are three others starting a business. That's why big corporations are usually against free market. They prefer higly regulated economy where they can bribe politicians to alter the law in their favor.