Contributor(s): Professor Nicholas Barr, Lord Turner of Ecchinswell | How can European countries reform pensions so that they keep pensioners and taxpayers happy, follow workers who move from country to country within the EU, and allow workers choice about retirement? Nicholas Barr is professor of public economics in LSE's European Institute. Lord Turner is chairman of the Financial Services Authority and chairman of the Climate Change Committee and the Overseas Development Institute. He is a visiting professor at LSE.