Traditionally the progress of a country has mainly been assessed using economic measures such as Gross Domestic Product (GDP). But it is now recognised that a full picture of how a country is doing cannot be understood by looking at GDP alone: there is also a need to look at broader measures such as 'quality-of-life' indicators, including people's own assessment of their well-being That is why we've launched a national debate on measuring well-being, to find out what matters to people in the UK. Already over 5,000 people have used our website and events around the country to tell us what matters to them. What we learn during the debate will help us develop indicators of the nation’s well-being and progress.The wider indicators will be available for all government and commercial organisations to use in the way which helps them make decisions. It is important that everyone makes their voice heard by visiting www.ons.gov.uk/well-being or following us on www.twitter.com/statisticsONS People can also comment on well-being discussion items at http://well-being.dxwconsult.com/blog/ and see what others are saying about well-being at http://well-being.dxwconsult.com The first phase of the debate closes on 15 April 2011.