This paper compares Hayek and Polanyi on spontaneous social order. Although Hayek is widely believed to have first both coined the name and explicated the idea of ?spontaneous order?, it is in fact Michael Polanyi who did so. Numerous differences emerge between the two thinkers. The characterisation of spontaneous order in Hayek, for example, involves different types of freedom to those advanced by Polanyi. Whereas Hayek (usually) portrays spontaneous order as a single entity, which is equivalent to free society as (...) a whole ? the free?catallactic society ? Polanyi by contrast is disposed to conceive of spontaneous orders as sub?units or components within free society as a whole. These and other aspects of their thought ? including the distinction between spontaneous and planned social orders ? are reviewed and criticised. (shrink)

It is a testimony to the enduring importance of Thomas Kuhn's The Structure of Scientific Revolutions that, 30 years on, its doctrines of normal science and paradigm, incommensurability and revolution continue to challenge metascien tists and stimulate vigorous debate. Critique has mainly come from philosophers and historians; by and large, interested sociologists have embraced Kuhn. Un justifiably so, this article argues, bringing to light a serious difficulty or "anom aly" in his account of the social side of science. Contrary to (...) what he claims, scientific knowledge is not the achievement of organic communities. It is con structed in "trans-epistemic arenas" by diverse participants, laypeople, and specialists. Accepting "community" is a flawed concept in the sociology of science, and in appreciating the major role Kuhn assigned it, the Kuhnian system looks less robust than it did before. (shrink)

Kuhn and Feyerabend have little to say about the thought of Michael Polanyi, and the secondary literature on Polanyi's relation to them is meagre. I argue that Polanyi's view, in Personal knowledge and in other writings, of conceptual frameworks ‘segregated’ by a ‘logical gap’ as giving rise to controversies in science foreshadowed Kuhn and Feyerabend's theme of incommensurability. The similarity between the thinkers is, I suggest, no coincidence.