The carbon reduction effect of "Going Global" strategy: an empirical perspective on the carbon emission efficiency of OFDI in China.

Under the constraints of the "dual-carbon" objectives, how China can sustain economic development while concurrently achieving carbon emission reduction has become a pressing issue. With the rapid expansion of China's outward foreign direct investment (OFDI), elucidating its impact on carbon emission efficiency (CEE) assumes pronounced significance. Employing the systematic generalized method of moments (GMM) approach, based on panel data spanning the years 2006 to 2019 for China, this study primarily delves into the influence of OFDI on China's CEE. Furthermore, it probes into the mechanisms and asymmetries underpinning the relationship between OFDI and CEE. The principal findings are as follows: (1) augmentation of OFDI exerts a constructive effect on domestic carbon emission reduction, concomitantly yielding a discernible enhancement in CEE. A 1% increase in the magnitude of OFDI flow gives rise to a 0.009% improvement in CEE. (2) Mechanism verification reveals that heightened levels of OFDI operate through elevating green total factor productivity (GTFP), fostering optimal industrial structural adjustments, and invigorating green technological innovation, thereby elevating the CEE of the home country. (3) Asymmetry characterizes the impact of OFDI on domestic CEE, signifying a significant enhancement in regions with lower CEE while exhibiting less conspicuous effects in areas with higher CEE. This study furnishes policymakers with insights into leveraging OFDI to enhance CEE, thereby facilitating the attainment of the "dual-carbon" objectives.