关键词: 国内价值链, 全球价值链, 产品竞争力

Abstract: The paper aims to reveal the characteristics of the value-added composition, the degree of vertical specialization and the competitiveness of export products in various regions and sectors in China, and to analyze the impact of the vertical specialization of different types on the export competitiveness. It constructs a heterogeneous inter-regional input-output table, establishes a regional value-added decomposition framework at the provincial level, and conducts a comparative analysis from the perspectives of GVC alone, NVC and GVC combined. The study finds that China’s various regions and sectors are still dominated by intra-regional trade; for value chain trade, the eastern coastal areas and the manufacturing sector are more concentrated in GVC, and the central and western regions and the primary product sector are more concentrated in NVC. From the perspective of the value chain division, it is difficult for the extension of GVC to continuously improve the export competitiveness; coordinating GVC with NVC is a viable path to enhance the export competitiveness. The innovation of this paper is that it brings GVC and NVC into a unified framework, and explores ways to improve the competitiveness of regional export products from the perspective of the value chain division. This paper provides a framework for the analysis of China’s regional trade value added, demonstrates a feasible path to enhance the competitiveness of China’s export products in the dual value chain. Based on the domestic and foreign dual-cycle system, it provides an important reference for promoting export competitiveness and regional high-quality economic development.

Key words: National Value Chain, Global Value Chain, Product Competitiveness