{"id":"W2145330028","doi":"10.1287/mnsc.2013.1826","title":"Rewarding Volunteers: A Field Experiment","year":2014,"lang":"en","type":"article","venue":"Management Science","topic":"Experimental Behavioral Economics Studies","field":"Social Sciences","cited_by":128,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"","keywords":"Prosocial behavior; Incentive; Spillover effect; Donation; Population; Government (linguistics); Public economics; Economics; Psychology; Social psychology; Microeconomics; Economic growth; Medicine","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":[0.01291429,0.001295656,0.001304551,0.0004668029,0.001894782,0.001582126,0.002208718,0.00311043,0.007131132],"category_scores_gemma":[0.01263393,0.000740167,0.0005722206,0.0004446813,0.001930379,0.001402519,0.001305755,0.002303621,0.000800413],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007243321,"about_ca_system_score_gemma":0.0013492,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001997644,"about_ca_topic_score_gemma":0.002499341,"domain_scores_codex":[0.9951175,0.003370668,0.000187503,0.0006794387,0.0003003161,0.0003444094],"domain_scores_gemma":[0.9689534,0.01984916,0.002762662,0.003706958,0.001363045,0.00336489],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"nonrandomized_trial","study_design_gemma":"randomized_trial","study_design_scores_codex":[0.1170071,0.536089,0.05483741,0.002360248,0.0009637704,0.002655293,0.01729784,0.01110307,0.1222022,0.02209355,0.01494141,0.0984491],"study_design_scores_gemma":[0.08007044,0.6127057,0.1114947,0.00075882,0.001336152,0.001407323,0.008688369,0.05112162,0.04145276,0.0469807,0.04321462,0.0007688469],"study_design_candidate":"randomized_trial","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.990272,0.00008256153,0.002641496,0.0005606036,0.00012523,0.002103522,0.000180438,0.00006836581,0.003965801],"genre_scores_gemma":[0.9617558,0.0001949109,0.02146788,0.002152019,0.0001862164,0.007740847,0.0003099999,0.00003562261,0.00615668],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01291429,"threshold_uncertainty_score":0.0682981,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02615208978005712,"score_gpt":0.3391635432648235,"score_spread":0.3130114534847663,"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."}}