From his Wikipedia bio:

Tibor Richard Machan, Ph.D. (born 18 March 1939), professor emeritus in the department of philosophy at Auburn University, holds the R. C. Hoiles Chair of Business Ethics and Free Enterprise at the Argyros School of Business & Economics at Chapman University in Orange, California.

He is a research fellow at the Hoover Institution at Stanford University, an adjunct scholar at the Cato Institute, and a former adjunct faculty member of the Ludwig von Mises Institute. Machan is a syndicated and freelance columnist; author of more than one hundred scholarly papers and more than thirty books, most recently The Promise of Liberty (Lexington Books, 2008). Machan rejects any division of libertarianism into left and right wing, comparing it to dividing the school into high and low versions. He holds that by its nature libertarianism is about political liberty for all individuals to do whatever that is peaceful, nonaggressive. (One of Machan’s books, a collection of his columns, is titled Neither Left nor Right.)

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