{"title":"Centrality bias in inter-city trade","authors":"Tomoya Mori , Jens Wrona","doi":"10.1016/j.regsciurbeco.2024.104060","DOIUrl":null,"url":null,"abstract":"<div><div>Using Japanese inter-city trade data, we find a substantial centrality bias in aggregate gravity estimations: Shipments from large cities (central places) to their hinterland are 50%–125% larger than predicted by gravity forces. We argue that this discrepancy results from aggregating across industries, that concentrate in a few central places, which predominantly serve their respective hinterlands. Decomposing the centrality bias along the margins of our data, we attribute most of the centrality bias to substantially larger extensive industry margins in exports from larger cities to their smaller hinterland cities than vice versa.</div></div>","PeriodicalId":48196,"journal":{"name":"Regional Science and Urban Economics","volume":"109 ","pages":"Article 104060"},"PeriodicalIF":3.5000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Regional Science and Urban Economics","FirstCategoryId":"96","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0166046224000917","RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ECONOMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Using Japanese inter-city trade data, we find a substantial centrality bias in aggregate gravity estimations: Shipments from large cities (central places) to their hinterland are 50%–125% larger than predicted by gravity forces. We argue that this discrepancy results from aggregating across industries, that concentrate in a few central places, which predominantly serve their respective hinterlands. Decomposing the centrality bias along the margins of our data, we attribute most of the centrality bias to substantially larger extensive industry margins in exports from larger cities to their smaller hinterland cities than vice versa.
期刊介绍:
Regional Science and Urban Economics facilitates and encourages high-quality scholarship on important issues in regional and urban economics. It publishes significant contributions that are theoretical or empirical, positive or normative. It solicits original papers with a spatial dimension that can be of interest to economists. Empirical papers studying causal mechanisms are expected to propose a convincing identification strategy.