{"id":"W2891031844","doi":"10.3386/w14704","title":"Economies of Density versus Natural Advantage: Crop Choice on the Back Forty","year":2009,"lang":"en","type":"preprint","venue":"National Bureau of Economic Research","topic":"Agricultural Economics and Policy","field":"Agricultural and Biological Sciences","cited_by":16,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"University of Minnesota; National Science Foundation","keywords":"Crop; Economics; Natural (archaeology); Agricultural economics; Agronomy; Geography; Biology; Archaeology","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":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.00134325,0.0002369498,0.000440687,0.00006285885,0.0001974604,0.00009421437,0.001014912,0.0002793613,0.000926766],"category_scores_gemma":[0.0003671158,0.00008956584,0.0003143278,0.0001037065,0.0002852794,0.0001178682,0.0005015379,0.0008291525,0.0002086166],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004557791,"about_ca_system_score_gemma":0.0001574548,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002298574,"about_ca_topic_score_gemma":0.00289329,"domain_scores_codex":[0.9980763,0.0001788368,0.0005806849,0.000486658,0.0003078296,0.0003696448],"domain_scores_gemma":[0.9959263,0.0029545,0.0004277138,0.0001594158,0.0004434354,0.00008860735],"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":[0.001036514,0.0002769361,0.002701933,0.00009199304,0.0004002932,0.000001131647,0.0001166389,0.003003891,0.0067237,0.9038743,0.06482226,0.01695037],"study_design_scores_gemma":[0.001277233,0.001288689,0.237653,0.0002104407,0.00003635558,0.000006114694,0.0004348369,0.002117177,0.01051459,0.713869,0.03155458,0.001037978],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9219885,0.0001611095,3.130157e-8,0.007352194,0.0003700209,0.0004919049,0.000241357,0.000008547911,0.06938633],"genre_scores_gemma":[0.9972183,0.0003149361,0.00002929918,0.0001378146,0.0009796026,0.0000229048,0.0003762899,0.000001905718,0.0009189985],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2349511,"threshold_uncertainty_score":0.9999865,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.274857177090034,"score_gpt":0.4513684705153665,"score_spread":0.1765112934253325,"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."}}