<p>William Keegan is the Observer's Senior Economics Commentator. He joined the paper in 1977 after nine years as Economics Correspondent of the Financial Times and a brief secondment to the Bank of England. His regular column – weekly.from 1978 and fortnighly since 2011 – is now in its 48th year. He is the author of many books, the most recent being Nine Crises: Fifty years Of Covering The British Economy From Devaluation To Brexit.</p>