贸易结构、吸收能力与国际R&D溢出效应

Trade Structure,Absorptive Capacity and International R&D Spillover Effect

本文从贸易结构、吸收能力以及吸收能力与各类R&D的协同效应等角度扩展了CH模型,并以APEC17个成员作为研究对象,运用面板数据模型研究了国内R&D投入、国际R&D溢出对全要素生产率的影响,得出了以下结论:(1)国内R&D投入是全要素生产率提升的根本源泉,发展中国家(地区)的低R&D投入未能促进全要素生产率,但低国内R&D投入与人力资本吸收能力的协同效应却促进了发展中国家的全要素生产率;(2)货物贸易进口未能促进全要素生产率的提高,货物贸易与人力资本吸收能力的协同效应也未能提升全要素生产率;(3)服务贸易进口显著促进了全要素生产率的提升,而且与人力资本吸收能力的协同效应也提升了全要素生产率。

After expanding Coe ＆ Helpman Model （1995） from the aspects of trade structure, absorptive capacity and synergistic effect of absorptive capacity with various R＆D, this paper analyzes the Total Factor Productivity （TFP） of APEC with panel data, and draws conclusions as follows. Firstly, Domestic R＆D input is the fundamental source of TFP increase, and low R＆D input in developing economies can not promote TFP increase, however, the synergistic effect of low R＆D input with human capital absorptive capacity promotes TFP increase in developing economies. Secondly, R＆D spillover channel of merchandise trade does not bring forth the increase of TFP, neither does the synergistic effect of merchandise trade with absorptive capacity. Thirdly, R＆D spillover channel of trade in services brings forth the increase of TFP, so does the synergistic effect of trade in services with absorptive capacity.