Concerning the specific dispute over why respectable economists routinely put their arguments on The Wall Street Journal op-ed page, I don’t think that either Klein’s incredulity or Wilkinson’s mockery gets anywhere near the real answer. It isn’t a question of credible people lending support to a “laughable ideology” or credible people who are ideologically inclined towards the paper’s editorial views publishing in a comfortable venue. Prominent, respectable economists submit articles to the WSJ op-ed page because the paper is one of the most widely-circulated national newspapers whose main focus is reporting on business and finance. A huge percentage of WSJ readers, whose politics are happily not always that of the immigration-cum-imperialism crowd who write the paper’s editorials, is made up of people who make their living working for corporations or investing in the market (or both) and who want to have informed commentary about developments in the economy. Economists publish their op-eds in the WSJ to reach an audience that is going to be interested in what they have to say. And supposedly clever schemes of building up the empire of the supply-siders really has nothing to do with it.