Hayek was an acute social theorist, but also an ideologue. He developed one of the most sophisticated theories of markets in social science, but he was also a market fundamentalist with a deep-rooted distrust of all forms of state regulation and state intervention, which tended to become more pronounced as he grew older. […] The paradox of Hayek's work however is that he stopped short of advocating either the kind of anarcho capitalism sought by some libertarians, or even the strict minimal state proposed by Robert Nozick. On the contrary he thought that the state needed to retain very strong powers to police the market order and prevent powerful interest groups such as trade unions from subverting it. But he fretted constantly about how this might be achieved, and how democratic governments could be persuaded to cease interfering with markets.