{"id":"W1979832209","doi":"10.1002/hec.1563","title":"Hypothetical versus real preferences: results from an opportunistic field experiment","year":2009,"lang":"en","type":"article","venue":"Health Economics","topic":"Economic and Environmental Valuation","field":"Economics, Econometrics and Finance","cited_by":17,"is_retracted":false,"has_abstract":true,"ca_institutions":"Vancouver Coastal Health Research Institute; University of British Columbia; Vancouver Coastal Health","funders":"Medical Research Council","keywords":"Economics; Field (mathematics); Econometrics; Statistics; Mathematics","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":[],"consensus_categories":[],"category_scores_codex":[0.0004895706,0.0001836974,0.0004177836,0.00007514783,0.0001363873,0.00006573741,0.000224013,0.0001348951,0.0006811036],"category_scores_gemma":[0.00004588017,0.0002364017,0.0000732164,0.00002794667,0.00003877385,0.000284622,0.00003077984,0.0001361098,0.0007696538],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004902789,"about_ca_system_score_gemma":0.00007313468,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001576048,"about_ca_topic_score_gemma":0.0001955373,"domain_scores_codex":[0.9978912,0.00002581202,0.001056599,0.000638839,0.00001958735,0.0003679197],"domain_scores_gemma":[0.9985605,0.0001255012,0.0004650777,0.0005285619,0.000004324443,0.0003160601],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"observational","study_design_scores_codex":[0.001933866,0.001185627,0.0146884,0.00002260374,0.0001282245,0.000005118005,0.005575479,0.001318134,0.00001965213,0.8328542,0.00679113,0.1354775],"study_design_scores_gemma":[0.01907598,0.01055988,0.4151607,0.00007304804,0.00003543324,0.000007700758,0.002443773,0.07026917,0.0003696092,0.3363426,0.1428414,0.002820605],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9419345,0.0002658276,0.0004232942,0.005199929,0.0009154497,0.0002933311,0.0008017141,0.00005947519,0.0501065],"genre_scores_gemma":[0.9915054,0.002588419,0.001931717,0.002911403,0.000259841,0.00001699319,0.0005645605,0.00001970131,0.0002019798],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4965116,"threshold_uncertainty_score":0.98926,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.3200563377544985,"score_gpt":0.3134003584386418,"score_spread":0.006655979315856764,"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."}}