Things like this: http://www.economist.com/blogs/graphicdetail/2013/05/daily-chart-0 http://www.economist.com/blogs/graphicdetail/2013/05/daily-c... The standa

Things like this: http://www.economist.com/blogs/graphicdetail/2013/05/daily-chart-0 http://www.economist.com/blogs/graphicdetail/2013/05/daily-c... The standard way to measure happiness seems to be to simply ask.