An extreme free-market pressure group, who (I think) would like government to butt out of providing everything except defence and law and order. The "Invisible Hand" of the "free" market, unencumbered by any sort of regulation, would sort itself out. Of course, any wealth created would automatically trickle down to the bottom. Oh, and passing any savings of government expenditure passed on as tax cuts to the rich, since that encourages entrepreneurship
The biggest problem is that it's difficult to see, anywhere in the world, where even its partial application has even looked like working as described.