… Happiness is about 0.50 higher for partnered individuals than it is for singles. If we look at changes at the Self-reported happiness scores are about 0.50 higher for partnered individuals than it for singles. If we look at changes at the level of the individual we can determine the true effect. On average, at partnership formation, happiness increases by about 0.25.
The difference between the two numbers (0.5 and 0.25) tells us that happier individuals are more likely to form partnerships. And, beyond that, there is still a positive effect of partnership formation on happiness. In addition, marriages make individuals happier than cohabitation. Finally, we find that the positive effect on happiness is identical for same-sex and opposite-sex couples….
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