Sure, but you did not enumerate a single free market. I'd wager the US healthcare industry is far and away the most regulated market in the entire world. We know that regulation protects the big players at the expense of their would be competition and drives up profits. Colleges are hardly any better, and ISPs are nearly all monopolies granted by municipalities in exchange for kick backs of various sorts. The government has interfered with every industry in this list via direct/indirect regulation, grants, guaranteed loans, or tax incentives. Lets go ahead and throw in housing in our list, too.