{"id":"W2164996812","doi":"10.1111/j.0008-4085.2004.011_1.x","title":"Alternative hypotheses and the volume of trade: the gravity equation and the extent of specialization","year":2004,"lang":"en","type":"article","venue":"Canadian Journal of Economics/Revue canadienne d économique","topic":"Global trade and economics","field":"Economics, Econometrics and Finance","cited_by":218,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Gravity equation; Gravity model of trade; Relevance (law); Structural equation modeling; Bilateral trade; Economics; Econometrics; Mathematics; Statistics; International trade; Geography","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001812279,0.0001776806,0.0007032937,0.0002283613,0.0001852483,0.000101054,0.0004532838,0.00009247172,0.00004014131],"category_scores_gemma":[0.0003665562,0.0001338353,0.0001990614,0.00009690444,0.00111645,0.0002996787,0.00002527779,0.000206052,0.000003239658],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004743588,"about_ca_system_score_gemma":0.0003225435,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.1494765,"about_ca_topic_score_gemma":0.5869045,"domain_scores_codex":[0.9982243,0.00006144965,0.001196577,0.0002174899,0.000002790336,0.0002973812],"domain_scores_gemma":[0.9974954,0.0002808958,0.001585513,0.0003004922,0.0000595427,0.0002781977],"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":[0.0001214141,0.000007223476,0.006269027,0.00001780654,0.0001415213,0.000001940645,0.002869015,0.009668425,7.375673e-7,0.9802807,0.00003276689,0.0005894096],"study_design_scores_gemma":[0.003144862,0.0001177638,0.01310408,0.00004049432,0.0000465952,0.0001006044,0.0007779952,0.004719475,0.0000498161,0.9746103,0.003125201,0.0001627605],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9853768,0.002174298,0.0004843471,0.009702957,0.0005838315,0.0003774457,0.0002509394,0.000001261031,0.00104807],"genre_scores_gemma":[0.9974559,0.00165813,0.0001063928,0.0004545056,0.0002500644,0.000009264765,0.000003598269,0.00001916034,0.00004299577],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.437428,"threshold_uncertainty_score":0.8561872,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.201197044021702,"score_gpt":0.1761910260951488,"score_spread":0.02500601792655321,"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."}}