Expert involved in establishing "The Evidence Index", focusing on the subtheme of ageing and retirement, which will examine the availability and quality of data for policymaking in the Group of 20 countries. The Index is part of a wider activity being launched by The Economist Group in partnership with The Pew Charitable Trusts – The Evidence Initiative – which presents the case for evidence-based decision-making in an age of challenging policy questions and low trust in institutions.