{"id":"W1549345617","doi":"10.1111/j.1420-9101.2007.01387.x","title":"The costs and benefits of resource sharing: reciprocity requires resource heterogeneity","year":2007,"lang":"en","type":"article","venue":"Journal of Evolutionary Biology","topic":"Evolutionary Game Theory and Cooperation","field":"Social Sciences","cited_by":19,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"National Evolutionary Synthesis Center","keywords":"Reciprocity (cultural anthropology); Kin selection; Inclusive fitness; Resource (disambiguation); Shared resource; Natural selection; Biology; Reproductive value; Selection (genetic algorithm); Value (mathematics); Natural resource; Microeconomics; Evolutionary biology; Economics; Computer science; Ecology; Social psychology; Psychology; Genetics","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":[0.002923059,0.0003992474,0.0007364174,0.0005210506,0.0008880876,0.002805399,0.0008910329,0.002132864,0.004883927],"category_scores_gemma":[0.01766616,0.000395303,0.0007193095,0.00044155,0.003419007,0.005889488,0.002745534,0.001701077,0.0005306759],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001271321,"about_ca_system_score_gemma":0.0008685937,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001512093,"about_ca_topic_score_gemma":0.0006710981,"domain_scores_codex":[0.9978848,0.001003679,0.000107437,0.0003027658,0.0003538797,0.0003473658],"domain_scores_gemma":[0.9871258,0.007658001,0.002090227,0.00196999,0.0005787876,0.0005771522],"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":[0.0002998266,0.00006346321,0.01328989,0.0002347234,0.00008614452,0.0004965924,0.0007819819,0.0372544,0.004327244,0.9046701,0.00148158,0.03701401],"study_design_scores_gemma":[0.0001265267,0.0001583325,0.01607476,0.0001044084,0.0001666336,0.001701737,0.0005925195,0.07673412,0.001948837,0.8947478,0.007549276,0.00009518183],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7215884,0.002005984,0.1840489,0.01169292,0.000121633,0.0001236851,0.0002359098,0.00009175176,0.08009077],"genre_scores_gemma":[0.9930329,0.0002934222,0.004421278,0.0001698275,0.00003899999,0.00003781109,0.00002869386,0.000009156856,0.00196793],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.004883927,"threshold_uncertainty_score":0.01633835,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03116220066874032,"score_gpt":0.3168066287982553,"score_spread":0.285644428129515,"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."}}