Varying according to the scope of Hayek's contributions, the papers in this volume include among others: * An affirmation of the "relevance" of Hayek's work * A survey of his contribution to knowledge * An appraisal of Hayek's innovative work on the methodology of the social sciences * A discussion of Hayek's achievements as scholar and mentor The contributors are: Fritz Machlup, Geroge Roche, Arthur Shenfield, Max Hartwell, William Buckley, Gottfried Dietze, Shirley Letwin.