{"id":"W1483487846","doi":"10.2139/ssrn.1138018","title":"The Paradox of 'Fraud-on-the-Market Theory': Who Relies on the Efficiency of Market Prices?","year":2009,"lang":"en","type":"article","venue":"SSRN Electronic Journal","topic":"Law, Economics, and Judicial Systems","field":"Economics, Econometrics and Finance","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"The King's University; Western University","funders":"","keywords":"Efficient-market hypothesis; Economics; Financial economics; Market efficiency; Microeconomics; Business; Stock market","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":[0.02877233,0.0006172833,0.002639461,0.00226576,0.002827766,0.01155565,0.004349009,0.01499975,0.01128691],"category_scores_gemma":[0.1207446,0.0009168626,0.001306364,0.002138099,0.0327062,0.03087881,0.004046376,0.01585403,0.00182205],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00363929,"about_ca_system_score_gemma":0.004000069,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002443413,"about_ca_topic_score_gemma":0.001208681,"domain_scores_codex":[0.9891479,0.00511547,0.0004677724,0.00167993,0.002695099,0.0008938732],"domain_scores_gemma":[0.8846049,0.08437935,0.007859869,0.0150666,0.006374708,0.001714631],"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":[0.00002203969,0.00002192209,0.0003848337,0.00003817109,0.00002268343,0.00004577352,0.0002911464,0.0004609759,0.0000416649,0.9837647,0.009130874,0.005775196],"study_design_scores_gemma":[0.00001601807,0.000004559936,0.0001647771,0.00001862109,0.000004814185,0.00003080751,0.00006704279,0.001406008,0.00006115207,0.995105,0.003110385,0.00001087144],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"commentary","genre_gemma":"empirical","genre_scores_codex":[0.07122234,0.009137657,0.1308161,0.6431445,0.002150462,0.00008747614,0.0004425679,0.0003672969,0.1426316],"genre_scores_gemma":[0.9479327,0.003268702,0.008004648,0.02843597,0.005149388,0.00007333547,0.00008202921,0.0002400865,0.00681319],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.02877233,"threshold_uncertainty_score":0.1521645,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0102308368629887,"score_gpt":0.1979966810393899,"score_spread":0.1877658441764012,"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."}}