People tend to see brighter days ahead—even when their well-being stays the same. A new cross-cultural study uncovers the psychology behind our optimistic view of the future.

Can just saying “I promise to be honest” make people tell the truth? A large study in Norway and the U.S. shows that even simple, voluntary promises can significantly reduce lying—even when no one is watching.

When is inequality between children acceptable? A new study from Shanghai and Norway reveals stark cultural differences in how adults judge fairness. Beliefs about merit, luck, and childhood shape whether inequality is tolerated—decisions that echo through education, parenting, and policy.

A new study from Uganda shows that childcare and cash grants improve women’s labor supply, household welfare, and early childhood outcomes—especially for single mothers and women entrepreneurs facing time and credit constraints.