In the largest globally representative study of human cooperation, nearly 70% of participants chose to cooperate with strangers on a shared cause, often at a personal cost, far exceeding their own expectations of others’ behavior.
- 69% of participants chose cooperation despite a financial loss
- People underestimated others’ cooperation by 22 percentage points
- Research suggests optimism about others could boost collective action
What happened
Researchers conducted a behavioral experiment involving more than 100,000 participants from 125 countries, each paired with an anonymous compatriot. Each individual chose between a guaranteed personal reward of $100 or a cooperative choice that paid less ($70) but triggered a $400 donation to climate action if both cooperated. Remarkably, 69% chose cooperation, a pattern consistent across all nations involved.
However, when participants estimated how many others would cooperate, they guessed only 47%, revealing a significant gap between actual behavior and expectations. This pervasive underestimation appeared in 124 of the 125 countries, suggesting a global tendency to undervalue others' willingness to work together for the common good.
Why it feels good
This research offers a hopeful perspective: most people are more willing to make sacrifices for positive communal outcomes than we often think. Recognizing this generosity challenges the common narrative of distrust or self-interest dominating social interactions.
Lead author Armin Falk emphasizes that if society embraced a more realistic view of others’ cooperative actions, it could foster stronger collaboration and more effective collective efforts. This insight shines a light on the untapped potential for positive change when people believe in each other's goodwill.
What to enjoy or watch next
As this study underscores the power of cooperation, it's a great moment to reflect on how individual actions contribute to broader causes. Whether supporting local community initiatives or global issues like climate action, the evidence suggests more people are willing to join in than expected.
Keeping an eye on future behavioral research in human cooperation can offer further clues on overcoming challenges that require collective effort. For those inspired, engaging in collaborative projects or spreading optimism about communal goodwill can help unlock even greater participation in solving shared problems.