Highlights•Positive spillovers between climate actions can help address climate change.•
Environmental identity, social norms, and affect and efficacy can foster spillover.•Behavioral …

Fighting the climate crisis requires changing many aspects of our consumption habits.
Previous studies show that a first climate-friendly action can lead to another. Does deciding …

What is a behavioral spillover? How can a spillover be uncovered from the data? What is the
precise link between the underlying psychological theory of a spillover and the econometric …

Which pro-social deeds make us willing to do more? Do nudges fostering these pro-social
deeds crowd out this behavioural spillover? We focus on a social norm nudge promoting …

We act pro-socially to make up for past wrongs, uphold our personal beliefs, get social
approbation, or enjoy the warm-glow feeling of helping out. Pro-social soft policies tap into …

Fighting the climate crisis requires changing many aspects of our consumption habits.
Previous studies show that a first pro-environmental action can lead to another. But does this …