📊Personally endorsing values tied to defence of family reputation was associated with greater coordinative efforts, whereas endorsing self-promotion and retaliation was associated with weaker engagement in coordination.
6/9

📊We found that perceived normative honour values were associated with greater competition and greater cooperation at both societal and individual levels.
5/9

🌍Nine of the 13 societies—Spain, Italy, Greece, Turkey, Cyprus (both Greek Cypriot and Turkish Cypriot communities), Lebanon, Egypt and Morocco—were in the Mediterranean region, where the cultural logic of honour plays a role in psychological tendencies and social behaviours.
3/9

🔍We asked how the cultural logic of honour may shape competition and cooperation. Participants made incentivized competition decisions in a contest game and cooperation decisions for coordination in a step-level public goods game.
2/9

📊Sanctions (reward/punishment) and communication (particularly bidirectional) were most effective in promoting cooperation. Sanctions were more effective in partner (vs. stranger) matching games. Communication was more effective in stronger conflicting-interest situations.
4/10

🔍We tested 13 preregistered hypotheses using a meta-regression of 9 structural features predicting 2,340 cooperation rates (Study 1) and conducted over 10 independent meta-analyses of studies that measured or manipulated each of these features (k = 909, Study 2).
3/10

⚙️There are at least seven aspects of a social dilemma where structural changes can be applied to alter the dilemma and affect cooperation. Researchers have introduced variation in these structural features through the dilemmas they’ve constructed in their studies.
2/10

🚨Excited that our meta-analysis is out in JPSP @APA_Journals. We synthesized 6 decades (1958-2017) of empirical evidence on social dilemmas and tested which structural features (most strongly) promote cooperation:
doi.org/10.1037/pspi...
1/10

📊Sanctions (reward/punishment) and communication (particularly bidirectional) were most effective in promoting cooperation. Sanctions were more effective in partner (vs. stranger) matching games. Communication was more effective in stronger conflicting-interest situations.
4/10

🔍We tested 13 preregistered hypotheses using a meta-regression of 9 structural features predicting 2,340 cooperation rates (Study 1) and conducted over 10 independent meta-analyses of studies that measured or manipulated each of these features (k = 909, Study 2).
3/10

⚙️There are at least seven aspects of a social dilemma where structural changes can be applied to alter the dilemma and affect cooperation. Researchers have introduced variation in these structural features through the dilemmas they’ve constructed in their studies.
2/10