Export and productivity in Chinese manufacturing: A semiparametric smooth coefficient approach

Mingyang Li and Subal C. Kumbhakar

Economics Letters, 2025, vol. 256, issue C

Abstract: This paper revisits the export–productivity puzzle in Chinese manufacturing using a semiparametric smooth coefficient (SPSC) model and firm-level panel data. Our main contribution lies in addressing several critical specification issues to ensure the validity and robustness of the results. We show that, unlike the positive export premium documented in other settings, Chinese exporters exhibit lower productivity than non-exporters. By addressing input endogeneity with proxy-variable methods and explicitly accounting for zero-export firms, our estimates are both robust and economically well-grounded. A distinctive feature of the SPSC framework is its ability to isolate input-specific channels — particularly capital and labor — through which exports influence productivity.

Keywords: Productivity; Export; Endogeneity; Semiparametric smooth coefficient models (search for similar items in EconPapers)
JEL-codes: C14 C26 D24 H25 L60 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecolet:v:256:y:2025:i:c:s0165176525004811

DOI: 10.1016/j.econlet.2025.112644

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