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Post Keynesian free banking

According to a recent blog post on 538, “post Keynesian” is the phrase in economic research most indicative of “left-leaning” political views and “free banking” is the phrase most indicative of “right-leaning” views. (See also the paper on which the blog post is built.) The authors apparently don’t know how to distinguish between conservatives and libertarians, because to my knowledge, most researchers on free banking are libertarians. Be that as it may, I do not view the correlation between research topics and ideology as inherently dangerous. Researchers in many disciplines have personal motivations for their research related to ideology, personal circumstances, etc. Over time, a wider body of scholars acts as judges of whether the facts and ideas advanced by the small group seem to be correct. The danger lies in the wider body being close-minded, accepting or rejecting without judging carefully.