> One view is that a free market is a system in which the prices for goods and services are determined by the open market and consumers, in which the laws and forces of supply and demand are free from any intervention by a government, price-setting monopoly, or other authority.

That's how I define it. Monopoly makes the market non free.

But here's the thing... if there ends up being a monopoly, who exactly is going to intervene to stop it, if not the government or other authority?