{"id":"W2061691990","doi":"10.5539/ijef.v4n7p22","title":"Weak-Form Market Efficiency: Evidence from the Brazilian Stock Market","year":2012,"lang":"en","type":"article","venue":"International Journal of Economics and Finance","topic":"Financial Markets and Investment Strategies","field":"Economics, Econometrics and Finance","cited_by":33,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Predictive power; Profitability index; Stock market; Economics; Financial economics; Stock (firearms); Econometrics; Stock market index; Market efficiency; Technical analysis; Business; Finance","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.006392899,0.0006110395,0.0007195913,0.002163842,0.0004029426,0.00153249,0.0007801128,0.0006924929,0.002081724],"category_scores_gemma":[0.04417356,0.0002289673,0.00110931,0.001955169,0.001022474,0.001599771,0.0009091707,0.0008585496,0.0004646467],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004057927,"about_ca_system_score_gemma":0.00039077,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01149088,"about_ca_topic_score_gemma":0.007324467,"domain_scores_codex":[0.9982546,0.0005432611,0.0002269384,0.0003662988,0.0004293703,0.0001795469],"domain_scores_gemma":[0.9442552,0.03152045,0.01564192,0.004761511,0.00249938,0.001321616],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001420961,0.0001207721,0.9843116,0.00003735886,0.0003529829,0.000177954,0.0002192097,0.002807674,0.0002990335,0.001421077,0.0004377099,0.009672553],"study_design_scores_gemma":[0.0000409878,0.0002886121,0.9484617,0.00003875484,0.0002879165,0.0003089736,0.0005061733,0.0438536,0.0005661825,0.004201014,0.001420008,0.00002601808],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9964654,0.0005240184,0.001100862,0.0002405792,0.00001033852,0.00001340041,0.0003288669,0.00001408029,0.001302356],"genre_scores_gemma":[0.999136,0.0001340192,0.000117821,0.00001176905,0.0000161919,0.000002584674,0.0004641546,0.000003631371,0.0001138766],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01149088,"threshold_uncertainty_score":0,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03036397236620128,"score_gpt":0.2350766829311562,"score_spread":0.2047127105649549,"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."}}