The Week Explained: The cost of happiness

How much money do you need to make you happy? It's a reasonable question that is damned hard to answer yet the people at Skandia International have conducted one of those surveys that purports to provide a response.

There is always a problem with asking questions like: are you happy or would you like more money or, as the condom company Durex does, how often do you have sexual intercourse. Respondents are tempted into mendacity, furnishing responses they believe will show themselves in a better light.

via Business feed http://www.scmp.com/business/money/money-news/article/1089197/week-explained-cost-happiness