Jill Leyland represents the Royal Statistical Society (RSS) on the UK National Statistician’s“Advisory Panel on Consumer Prices – Stakeholder”. Together with John Astin she wrote the 2015 paper “Towards a Household Inflation Index” (since updated) which the ONS used as astarting point for the development of the Household Costs Indices. From 2009 to 2012 shewas a Vice President of the RSS. She chaired its committee which developed RSS policytowards official statistics from 2008 to 2012 and its organising committee for the Excellencein Official Statistics Award from 2010 to 2016. Jill was awarded the Society’s West Medal forservices to Official Statistics in 2018. She has been an Expert Witness on inflationmeasurement and is a Fellow of the Society of Professional Economists. In the past sheworked, among other organizations, for the World Gold Council, the OECD, the EconomistIntelligence Unit, and the Government Statistical Service.