Letter from Richard Layard, Director, Wellbeing Programme, London School of Economics and Political Science:  “We now have the knowledge to implement that approach. Much of it is found in the annual World Happiness Report and the Global Happiness Policy Report.”

[No link available]

Related publications

World Happiness Report 2018, John Helliwell, Richard Layard and Jeffrey Sachs (Eds), March 2018

http://worldhappiness.report/ed/2018/

Global Happiness Policy Report 2018

https://s3.amazonaws.com/ghc-2018/UAE/Global+Happiness+Policy+Report+-+Full.pdf