摘要
21世纪以来,ICT发展已经深刻地影响着中国经济社会。为检验中国ICT资本是否存在"生产率悖论",本文运用PIM系统估算了2003-2016年期间全国层面和地区层面ICT服务业和非ICT服务业资本存量及其产出弹性。研究发现,中国ICT服务业存在明显的"投资不足",但在2012年以后有所缓和;ICT服务业资本存量在各地区表现非均衡分布,但其差距趋于收敛;ICT服务业资本对中国经济增长具有显著的促进作用,产出弹性在0.1605-0.1705之间;从时间趋势来看,考察期间内ICT服务业资本对中国经济增长的影响效果不断增强,从区域差异来看,ICT服务业资本产出弹性在东、中和西部呈依次递减趋势。本文研究证实中国ICT资本不存在"生产率悖论"。
Since the 21 st century,the development of ICT has deeply influenced China’s economy and society.To test whether there is a"productivity paradox"for China’s ICT capital,the PIM is used to estimate the capital stock and output elasticity of ICT service industry and non-ICT service industry at boththe national and regional levels from 2003 to 2016.The results show that China’s ICT service industry existed obvious"underinvestment",but later eased since 2012.The capital stock of ICT service industry showed unbalanced distribution among different regions,but the gap between the capital stock of ICT service industry among different regions tended to converge.Investment in ICT service industry can significantly promote economic growth,and the output elasticity for ICT service capital was between 0.1605 and 0.1705.From the perspective of time trend,the impact of ICT service industry capital on economic growth was continuously enhanced during the investigation period.From the perspective of regional differences,the output elasticity of ICT service industry capital decreasedfrom the east,middle and west in sequence.It is further confirmed that there is no"productivity paradox"for China’s ICT capital.
作者
程名望
张家平
CHENG Ming-wang;ZHANG Jia-ping(School of Economics and Management,Tongji University,Shanghai 200092,China)
出处
《中国管理科学》
CSSCI
CSCD
北大核心
2019年第11期189-199,共11页
Chinese Journal of Management Science
基金
教育部哲学社会科学研究重大课题攻关项目(15JZD026)
国家自然科学基金资助项目(71873095,71903151)
同济大学研究生国际交流基金资助项目(201902028)
关键词
数字中国
ICT服务业
资本存量
产出弹性
生产率悖论
digital China
ICT service industry
capital stock
output elasticity
productivity paradox
