November’s pre-conference Insights blog is concerned with the meaning of the word ‘market’. The term appears often in economic and political discourse, usually accompanied by some other word: there are references to ‘free markets’, or to ‘oligopolistic markets’, or to ‘market failure’. But what is the nature of this thing that is ‘free’, or ‘oligopolistic’, or has ‘failed’, in the latter case usually claimed in the context of some call for a deus ex machina, in the form of a regulatory intervention, to ‘fix’ the problems.