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学习利用贸易协定

Learning to use trade agreements
Journal of Development Economics · 2024 · Kala Krishna、Carlos Salamanca、Yuta Suzuki、Christian Volpe Martincus

中文摘要

为在特惠贸易区(PTA)获得较低关税而满足原产地规则(ROOs),会产生高昂的生产成本和固定单证成本。我们采用一种基于模型并校正内生性的方法,利用来自拉丁美洲国家、出口商与进口商匹配的独特交易层面海关数据集,发现优惠待遇利用模式表明,这些固定成本会随着出口商利用优惠待遇的经验积累而下降,尤其会随着出口商在同一产品及与同一贸易伙伴交易中的相关经验积累而下降。这既表明学习效应确实存在,也揭示了其作用渠道。利用一项自然实验,我们还发现,正如预期的那样,新纳入覆盖范围的产品表现出强得多的学习效应。

Abstract

Meeting Rules of Origin (ROOs) in order to obtain lower tariffs in a Preferential Trading Area (PTA) is costly both in terms of production costs and fixed documentation costs. Using a model-based approach that corrects for endogeneity and a unique exporter–importer matched transaction-level customs dataset from Latin American countries, we show that preference usage patterns suggest that these fixed costs fall with exporters’ experience in preference utilization, particularly that in the same product and with the same partner, indicating both the existence and channel of learning. Exploiting a natural experiment, we also show that newly covered products have much more learning as might be expected.
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