{"id":"W2594888622","doi":"10.1016/j.jtbi.2017.02.036","title":"A simple rule of direct reciprocity leads to the stable coexistence of cooperation and defection in the Prisoner's Dilemma game","year":2017,"lang":"en","type":"article","venue":"Journal of Theoretical Biology","topic":"Evolutionary Game Theory and Cooperation","field":"Social Sciences","cited_by":27,"is_retracted":false,"has_abstract":false,"ca_institutions":"Université de Montréal","funders":"","keywords":"Prisoner's dilemma; Reciprocity (cultural anthropology); Dilemma; Mathematical economics; Social dilemma; Game theory; Simple (philosophy); Superrationality; Strong reciprocity; Adversary; Economics; Computer science; Microeconomics; Repeated game; Social psychology; Mathematics; Psychology; Epistemology; Computer security","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001774104,0.000338232,0.001105652,0.0005784916,0.0010699,0.00171649,0.0008650685,0.001517545,0.0027844],"category_scores_gemma":[0.0124494,0.0004096793,0.0006924156,0.0003198573,0.002020699,0.001564606,0.00107954,0.0009997145,0.00059671],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004173934,"about_ca_system_score_gemma":0.0006885162,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0006953295,"about_ca_topic_score_gemma":0.0005817692,"domain_scores_codex":[0.9990645,0.0004582094,0.00005169487,0.0001652667,0.0001342313,0.0001261109],"domain_scores_gemma":[0.9942159,0.00394098,0.000443609,0.0006234731,0.0003357668,0.0004402695],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0004527698,0.0001678277,0.004098294,0.0002448541,0.0001848524,0.00166653,0.0009376242,0.06044417,0.02573683,0.8764555,0.005148938,0.02446179],"study_design_scores_gemma":[0.0002718063,0.0001562619,0.00191856,0.0000330704,0.00007475395,0.001233547,0.0001775825,0.313504,0.002949798,0.6777511,0.001851967,0.00007756682],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8537166,0.0002473932,0.1166167,0.001059567,0.0002146832,0.00006689997,0.00009153154,0.0001892365,0.02779737],"genre_scores_gemma":[0.990135,0.00009332822,0.007673533,0.00007585302,0.0000212945,0.00002931028,0.0000148702,0.00003174673,0.001925048],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0027844,"threshold_uncertainty_score":0.009382486,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02338213489914896,"score_gpt":0.3337431728450481,"score_spread":0.3103610379458991,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}