According to economists David Blanchflower and Andrew Oswald, a happy marriage is worth about $100,000 a year.

(They describe a happy marriage as basic insurance against adverse life events, that allows gains from economies of scale and specialization within the family.

And they are not alone, economists Ed Diener and Shigehiro Oishi say that those who place high importance on money are far more likely to be unsatisfied with their lives than those who love love.

But research has also found that those who end their marriage lose all benefit of the happiness that it once provided with a little extra unhappiness thrown in for good measure, and those poor souls who divorce are considerably less happy than their married friends as well as those that have never married in the first place.

So, if you want to be happy, don’t get rich, get married, and whatever you do, keep your partner happy.)