Trust, Happiness, and Pro-Social Behavior

This paper combines several large-scale surveys with different identification strategies to shed new light on the determinants of cooperative behavior. We provide evidence indicating that the well-being maximizing level of trust is above the income maximizing level. Higher trust is also linked to more cooperative and pro-social behaviors, including the private provision of global public goods such as climate change mitigation. Consistent with "warm glow" theories of pro-social behavior, our results show that individuals may enjoy being more cooperative than what would lead them to maximize their income, which is reflected in higher levels of well-being.