{"id":"W3123747809","doi":"","title":"Do supermarket prices change from week to week","year":2009,"lang":"en","type":"preprint","venue":"RePEc: Research Papers in Economics","topic":"Consumer Market Behavior and Pricing","field":"Business, Management and Accounting","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Economics; Quarter (Canadian coin); Price level; Econometrics; Monetary economics; Hazard; Product (mathematics); Mathematics; Geography","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"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":[0.0008689082,0.0001686164,0.000407216,0.001407226,0.0002487983,0.001774123,0.0004553298,0.0008450808,0.005531567],"category_scores_gemma":[0.01360101,0.000295001,0.0004405506,0.002296079,0.0004275283,0.002249967,0.0004541217,0.0005889553,0.002155045],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007078457,"about_ca_system_score_gemma":0.0001891948,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02042867,"about_ca_topic_score_gemma":0.02746574,"domain_scores_codex":[0.9989924,0.0002090008,0.00009875589,0.0002882542,0.0002579039,0.000153728],"domain_scores_gemma":[0.9867082,0.003236996,0.00774064,0.0007320989,0.00107111,0.0005110289],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003312412,0.00004785764,0.975077,0.00008000488,0.0002199873,0.0001463546,0.001357983,0.0009309693,0.0008093935,0.0006020198,0.003423088,0.01697405],"study_design_scores_gemma":[0.00000555357,0.00003629466,0.9961953,0.00001129513,0.00001658663,0.00007528516,0.0005581193,0.001074238,0.0002202593,0.0002289841,0.001557526,0.00002055047],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.991928,0.0004313182,0.000486994,0.0004529769,0.0000290517,0.000007964046,0.002248466,0.00003739537,0.004377803],"genre_scores_gemma":[0.9973068,0.0001900097,0.0001151434,0.00005943144,0.0000235841,0.000005916602,0.001250916,0.00001821396,0.001030013],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02042867,"threshold_uncertainty_score":0.04061949,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.07957282020904616,"score_gpt":0.3130566903559105,"score_spread":0.2334838701468644,"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."}}