数字产品贸易限制与全球价值链升级

Digital Product Trade Restrictions and Global Value Chain Upgrading

通过构建多产品企业模型研究数字产品贸易限制对全球价值链升级的影响,考虑进口需求弹性,计算出数字产品贸易限制指数,探究数字产品贸易限制对全球价值链升级的影响渠道,得出以下结论:数字产品贸易限制对全球价值链参与度和位置的影响显著为负,对我国全球价值链前向和后向参与度的影响均显著为负;异质性分析结果显示:新数字产品的贸易限制对全球价值链升级的消极影响大于旧数字产品;产品类型异质性结果表明,数字产品中间品的贸易限制对全球价值链参与度和位置的消极影响最大,其次是数字产品资本品和数字产品消费品;数字产品贸易限制通过降低出口产品质量、降低进口产品质量和降低新产品出口的渠道对全球价值链参与度和位置产生消极影响。

By constructing a multi-product enterprise model,we calculated the impact of digital product trade restrictions on global value chain upgrading,considered the elasticity of import demand,calculated the digital product trade restrictions index,explored the influence channels of digital product trade restrictions on global value chain upgrading,and drew the following conclusions:digital product trade restrictions have a significantly negative impact on global value chain participation and location,and have a significantly negative impact on China′s forward and backward participation in global value chain.The results of heterogeneity analysis show that product heterogeneity indicates that digital product trade restrictions have a greater negative impact on global value chain upgrading than those of old digital products.The results of product type heterogeneity show that intermediate digital product trade restrictions have the largest negative impact on the participation and location of global value chain,followed by capital digital products and consumer digital products.Digital product trade restrictions negatively affect GVC participation and location by reducing the quality of exported products,reducing the quality of imported products,and reducing channels for new products to be exported.