JIM JOHNSTON has been working at the Scottish Parliament since March 1999, and is currently Clerk to the Finance Committee. He has also been clerk to a number of other committees. He was seconded to the House of Lords EU Select Committee in 2008-9. He holds a BA (Hons) in English and Politics from the University of Strathclyde and PhD in Political Science from the University of Birmingham. His research focused on the economic policies of post-war Labour governments. His publications include a co-authored book on post-war British politics.JAMES MITCHELL holds a chair in Politics at Strathclyde Uni-versity and is a Member of the Hansard Society Scotland Working Group. He was an Honorary Senior Research Fellow at the Constitution Unit, University College, London, 2001-6. He was an adviser to the Committee of the Centre, Northern Ireland Assembly, 2001-2. He was a member of Advisory Committee on Policy Making, advising the Office of First and Deputy First Minister (OFMDFM), Northern Ireland Executive, late 2000-spring 2001. He is a member of the Editorial Board of Parliamentary Affairs. He is also a member of the British Study of Parliament Group.