This text systematically traces the development of the British Conservative government’s policy to the European Exchange Rate Mechanism from 1979 to 1994. The book provides information and insight into the development of ERM policy, which led to the downfall and discredit of the Conservative leadership. Revealing dramatic episodes in the progress of the policy, including a full account of the deterioration in the relationship between Margaret Thatcher and Nigel Lawson, the author shows how the Thatcher government was torn apart, and the credibility of the Major government undermined.