The key points are:
Despite rising in GDP per person over the last 20 years, surveyed measures of happiness have been flat to falling.
Key drivers are likely to be rising expectations, the rise of social media and falling housing affordability.
It may be driving the rise of extreme political parties.
Some suggest we are on an “hedonic treadmill” and want a broader policy focus on something like Gross National Happiness, but by suppressing individual freedom and achievement which could in turn depress happiness.