电子商务平台应用与企业出口国内增加值率——基于B2B商业模式的经验分析

E-commerce Platform Application and DVAR of Export Firms——Evidence from B2B Businesses

本文利用2000—2013年中国海关进出口数据、工业企业数据以及阿里巴巴实名供应商的匹配数据,考察了B2B商业模式下电子商务平台应用与出口国内增加值率(DVAR)的关系。经验分析发现,企业参与并使用B2B电子商务平台显著提高了出口DVAR。渠道分析表明,采购成本降低引致的成本变动效应、市场竞争引致的中间产品进口替代效应和交易匹配效率提升导致的订单效应,是电子商务平台推动企业国内价值增值的重要途径。异质性分析显示,电子商务的DVAR促进效应因企业所有制、贸易方式和区域特征的不同而异,其对于非国有企业、东部省份和一般贸易企业的促进作用更明显。

Using China Customs data,industrial enterprises data and Alibaba supplier information over the period of 2000—2013,this paper examined the impact of B2B e-commerce platform participation on firms’export domestic value added ratio(DVAR).We find that participation in B2B e-commerce platform significantly increases firms’export DVAR.Results for empirical analysis show that such positive impact is mediated by lower procurement costs induced cost change effect,higher market competition induced substitution effect of intermediate goods imports,and greater transaction matching effectiveness induced order effect.In addition,the positive nexus between B2B e-commerce platform participation and firms’export DVAR varies with firm ownership,trade type and geographic location.It is more significant for enterprises that are non-stateowned,making general processing trade and located in eastern regions.