Contributor(s): Professor Tim Besley | It is widely recognised that the interplay of political and economic forces has a major bearing on the path of development. How do the developments in the recent political economy literature bear on the practical problems that some countries face in achieving sustainable development paths? Tim Besley is Professor of Economics and Political Science at the London School of Economics, and served on the Bank of England's Monetary Policy Committee from September 2006 until August 2009.