{"id":68575,"date":"2023-12-01T23:08:07","date_gmt":"2023-12-01T22:08:07","guid":{"rendered":"https:\/\/www.wifo.ac.at\/publication\/confidence-intervals-for-the-trade-cost-parameters-of-cross-section-gravity-models\/"},"modified":"2025-10-22T22:24:48","modified_gmt":"2025-10-22T20:24:48","slug":"confidence-intervals-for-the-trade-cost-parameters-of-cross-section-gravity-models","status":"publish","type":"publication","link":"https:\/\/www.wifo.ac.at\/en\/publication\/68575\/","title":{"rendered":"Confidence Intervals for the Trade Cost Parameters of Cross-section Gravity Models"},"content":{"rendered":"","protected":false},"featured_media":0,"template":"","class_list":["post-68575","publication","type-publication","status-publish","hentry"],"acf":{"subtitle":"","text":"Confidence intervals using robust PPML-standard errors are too small in cross-section gravity models. Monte Carlo simulations indicate approximately correct coverage rates of jackknife and percentile bootstrap confidence intervals. Those of constrained PPML estimates are reliable, if trade costs are non-stochastic.","onlinedate":"2021-01-01 01:00:00","lang":"English","publication_series":"","publication_date":"20210101","publication_date_year":"2021","publication_date_full":false,"publication_num_pages":"5","keywords":"[\"Poisson pseudo maximum likelihood estimation\",\"Confidence interval\",\"Heteroskedasticity-robust inferen\"]","jelcodes":"[]","related_publications":"[]","pdf":null,"zip":null,"link":"https:\/\/doi.org\/10.1016\/j.econlet.2021.109787","monthly_report":false,"monthly_report_main":false,"monthly_report_volume":"201","monthly_report_pages":"","monthly_report_pages_sort":"0","issue":"C","journal":"Economics Letters","publisher":"","invisible":false,"external":true,"embargo_date":null,"types":[83083],"research_groups":[3491],"collaboration":"","persons":[3785],"persons_data":"[{\"personId\":3785,\"personName\":\"Michael Pfaffermayr\",\"organisationNames\":[]}]","clients":[],"subclients":[],"partners":[],"topics":[],"host_publication_title":"","host_publication_subtitle":"","place_of_publication":"","host_publication_editors":"[]","type_description":"","output_media":"","chapter":"","article_number":"","scientific_assistance":"[]","scientific_review":"[]","version":"","release_date":null,"expiration_date":null,"surveyor":"","research_assistance":"","edv":"","additional_info_de":"","additional_info_en":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - 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