Big events revive these debates, but they need to be reinvented for new times. Conventional sociological post-industrialism accounts rendering left ideologies and movements redundant badly need revision in the light of falling living standards and growing inequalities. So does Fukuyama's notion of the end of ideology and the triumph of market capitalism - as he now admits. Big names too: Keynes, Polanyi, Kondratieff, Galbraith and now Paul Krugman are deployed by social democrats against those who want to resurrect Marx and Engels.