{"id":"W3117078653","doi":"10.2139/ssrn.3753779","title":"Digital Platforms' Information Concentration: From Keystone Players to Gatekeepers","year":2020,"lang":"en","type":"article","venue":"SSRN Electronic Journal","topic":"Digital Platforms and Economics","field":"Business, Management and Accounting","cited_by":3,"is_retracted":false,"has_abstract":false,"ca_institutions":"HEC Montréal; Center for Interuniversity Research and Analysis on Organizations","funders":"","keywords":"Competition (biology); Industrial organization; Information asymmetry; Business; Market power; Bargaining power; Economics; Free riding; Microeconomics; Incentive","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":"codex-gemma-dda1882f352a","candidate_categories":["scholarly_communication","insufficient_payload"],"consensus_categories":["scholarly_communication"],"category_scores_codex":[0.0001628114,0.0001554389,0.0001603271,0.00006614778,0.0001603858,0.001934426,0.0002434263,0.00005244247,0.00008391723],"category_scores_gemma":[0.00007595215,0.000141785,0.00008649674,0.0001906323,0.00001726654,0.01802811,0.00006897172,0.0004826041,0.001783395],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002566765,"about_ca_system_score_gemma":0.0002355991,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00005069181,"about_ca_topic_score_gemma":0.00008620868,"domain_scores_codex":[0.9983035,1.945172e-7,0.0003588836,0.0001282314,0.0001778844,0.001031277],"domain_scores_gemma":[0.9995838,0.00001062514,0.0002058553,0.00007494345,0.0000680555,0.00005668145],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.000448422,0.00004156468,0.005829602,0.00002259381,0.0002451254,0.000005416386,0.0005062522,0.003406842,0.00009606485,0.8234392,0.003327039,0.1626318],"study_design_scores_gemma":[0.004848883,0.0003867966,0.002371142,0.00007018562,0.0001118919,0.00006721692,0.03238783,0.01876234,0.00009415869,0.6617093,0.2775858,0.001604459],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9687518,0.00003856823,0.004997097,0.001269108,0.0002456947,0.0001422718,0.000007259743,0.00007156438,0.02447657],"genre_scores_gemma":[0.9932014,0.00003621224,0.00002085934,0.005304869,0.001170457,0.000002540827,0.0001362222,0.00001512434,0.0001122872],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2742587,"threshold_uncertainty_score":0.9991016,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00844252227360883,"score_gpt":0.1736403569812068,"score_spread":0.165197834707598,"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."}}