As the Salafi atheist said, you also need regulation in the market and that kind of defeats the purpose of a completely ''free'' market. In essence, there isn't such thing as a free market because government always played a pivotal role for many enterprises through regulation, protectionism and investment.The best system is IMHO used in Western-European countries where they use the mix of capitalism and socialism ( Scandinavian model) and it works increasingly better than the Anglo-Saxon model that America and the UK uses.