The foundations of the post-war consensus can be traced to the reports of William Beveridge, a Liberal economist who in 1942 formulated the concept of a more comprehensive welfare state in Great Britain. The first general election since 1935 was held in Britain in May 1945, giving a landslide victory for the Labour Party, whose leader was Clement Attlee. The policies undertaken and implemented by this Labour government laid the base of the consensus. The Conservative Party accepted many of these changes and promised not to reverse them in its 1947 Industrial Charter.
The post-war consensus can be characterised as a belief in Keynesian economics, a mixed economy with the nationalisation of major industries, the establishment of the National Health Service and the creation of the modern welfare state in Britain. The policies were instituted by all governments (both Labour and Conservative) in the post-war period. The consensus has been held to characterize British politics until the economic crises of the 1970s which led to the end of the post-war economic boom and the rise of monetarist economics.