中国信息技术投资绩效的实证研究

被引:6
作者
张之光
王艳
赵立雨
机构
[1] 西安理工大学经济与管理学院
关键词
信息技术; 生产率悖论; 投资绩效; 调整速度;
D O I
10.16192/j.cnki.1003-2053.2015.08.004
中图分类号
F49 [信息产业经济];
学科分类号
1201 ;
摘要
信息技术投资绩效应该是一个动态变化的过程,而且受到国家特征的影响,但当前的研究往往忽视了国家特征对信息技术投资绩效的影响。本文在传统局部调整模型的基础上,假设调整速度是动态变动的,且是国家特征的线性函数,提出了一种基于动态调整速度的局部调整模型。该模型可以分析统计期内信息技术投资绩效的动态变化过程,及其与调整速度的关系。结果表明,信息技术投资对中国经济增长的影响并不显著,信息技术作为生产要素进入生产过程后,导致经济绩效的下降,中国存在信息技术的"生产率悖论"现象。
引用
收藏
页码:1141 / 1150+1173 +1173
页数:11
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