Centrality bias in inter-city trade

IF 3.5 2区 经济学 Q1 ECONOMICS
Tomoya Mori , Jens Wrona
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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.
城市间贸易的中心性偏差
利用日本的城市间贸易数据,我们发现在总体引力估算中存在很大的中心性偏差:从大城市(中心城市)到其腹地的出货量比引力预测的大 50%-125%。我们认为,这种差异是由于各行业的汇总造成的,这些行业集中在少数几个中心地带,而这些中心地带主要服务于各自的腹地。通过对数据边缘的中心性偏差进行分解,我们将大部分中心性偏差归因于大城市向其腹地小城市出口的广泛产业边缘比反向大得多。
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来源期刊
CiteScore
5.30
自引率
9.70%
发文量
63
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.
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