Global value chains, trade liberalization, and productivity: a stochastic frontier analysis of Chinese manufacturing firms

This article estimates the total factor productivity (TFP) growth of Chinese manufacturing firms and quantifies how international sourcing and trade liberalization affect TFP growth. To this end, we estimate stochastic frontier production that decomposes TFP growth into technical changes, returns to scale, and technical efficiency changes. Furthermore, we consider two channels through which external factors affect TFP growth: technical change and technical efficiency change components. We measure international sourcing and trade liberalization by foreign value-added shares and input tariffs, respectively. Several novel findings emerge. First, international sourcing and import tariff reduction positively impact TFP growth by improving technical changes and technical efficiency. Second, international sourcing has a negative effect on the technical changes of processing importers, while it has positive effects on the technical change and technical efficiency change of ordinary importers. Third, input tariff reduction has a substantial and positive impact on the technical efficiency change of processing importers and the technical change of ordinary importers.