Research On The Influence Of Trade Liberalization Of Intermediate Goods On The R&D Investment Of Enterprises

This paper mainly explores the impact of the free trade of intermediate goods on R&D investment.Based on tariff data,2000-2006 China's industrial enterprises and the customs data,we used Fixed effect model,Instrumental variable method,PSM and PSM+DID to verify the hypothesis.The results show that trade liberalization of intermediate goods continues to promote promotion of enterprise R&D investment effectively.After the robustness test,the above conclusion is still valid.Subsequently,we estimate the mediating effect by step-by-step test and explore the mechanism of trade liberalization of intermediate goods affecting corporate R&D investment.The results show that trade liberalization of intermediate goods promotes R&D by increasing the scale of corporate exports,eroding corporate profits,and intensifying market competition,driving industrial transformation and upgrading.The results of this paper can provide a reference for China's current trade liberalization policy.