Frank Hahn took his doctoral degree in 1951 at the London School of Economics (LSE) for the thesis The share of wages: an enquiry into the theory of distribution, where he was supervised initially by Nicholas Kaldor and later by Lionel Robbins.[4] As a student, he had been part of the Hayek–Robbins seminar at LSE, and he once said his wife had been an original member of the Mont Pelerin Society.[5]