Michael Moore's latest film, Where to Invade Next? and the subjective theory of value  Love him or hate him, you have to respect Michael Moore as one of the great entrepreneurs of our time. As a filmmaker and author, he has satisfied the demand for provocative agitprop that his audience, many of whom have supported Bernie Sanders this election, delightfully consumes. In the process, he made himself millions of dollars, employed many people and - despite his tendency to play loose with facts - has elevated the documentary as an artform. He’s basically the reason why Netflix has a robust...