%T World happiness report 2015 %A John F. Helliwell %A Richard Layard %A Jeffrey D. Sachs %I Sustainable Development Solutions Network %D 2015 %K Public health, %K Wellbeing, %K Social issues, %K Child health, %K Psychology, %K Happiness %U https://apo.org.au/node/226786 %X The World Happiness Report 2016 ranks 158 countries by their happiness levels. This year's report also looks at gender and age as a factor, the mental health of children, and the neuroscience of happiness. %9 Report