Understanding and Intuitive Cooperation

Are humans intuitively cooperative, or does reflection foster cooperation? The Social Heuristics Hypothesis (SHH) proposes that intuition promotes cooperation, but the evidence is inconsistent across studies. We combine a lab experiment with a re-analysis of existing studies to test for an effect of time-pressure on cooperation. We suggest – based on a meta-study of about 12.000 subjects from lab and online experiments across the world - that...