London: Routledge & Kegan Paul, 1967/1969; Chicago: University of Chicago Press, 1967/1969; Toronto: University of Toronto Press, 1967/1969; x, 356 pp. Reprinted in paperback New York: Simon and Schuster Clarion Book, 1969.

The reason for the collection of essays presented here by Hayek is succinctly presented in the author’s preface: “This volume contains a selection from the work of the last twenty years or so of an economist who discovered that if he was to draw from his technical knowledge conclusions relevant to the public issues of our time, he had to make up his mind on many questions to which economics did not supply an answer… The problems of the philosophy of science and of moral philosophy that are discussed all arose out of the pre-occupation with problems of economic theory, psychology, and social policy, and the studies of problems of politics and economics are also concerned more with issues where the different branches of knowledge intersect than with those that belong to only one discipline.”

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