生产性服务业对制造业效率调节效应的实证研究

An empirical study of producer services moderating effect on efficiency of manufacturing in China

生产性服务业作为一种知识密集型投入,其快速发展会对制造业效率的提升产生一定的推动作用。运用1996-2007年的时间序列数据,采用层级回归法对生产性服务业与制造业效率之间的关系进行实证研究。引入生产性服务业作为调节变量,研究其对技术创新能力、人力资本存量、经济发展水平与制造业效率关系的调节效应。结果表明,生产性服务业的发展未直接提高制造业的效率水平,其对技术创新能力、经济发展水平与制造业效率之间的关系具有调节效应。其中,当交通运输仓储及邮电通信业、科学研究和综合技术服务业的发展水平较高时,技术创新能力和经济发展水平对制造业效率的提升作用更为明显;金融保险业对制造业效率的调节效应不显著。

Producer service, as a knowledge - intensive input, is playing an important role in improving manufacturing efficiency. Taking time series data over 1996 -2007 as the sample, this paper studies the relationships between producer service and manufacturing＇ s efficiency using hierarchical regression method. Importing producer service as a moderating variable, this paper studies the moderating effect of the producer service on the relationships between manufacturing efficiency and 3 other variables - technological innovation capability, human capital stock, and also economic development level. The results indicate that producer service does not increase the manufacturing efficiency directly; however, it has significant moderating effects on the manufacturing efficiency＇ s relationships between technological innovation capability and economic development level. In addition, the higher the development level of transportation warehousing, postal and telecommunications industry, scientific research and comprehensive technical service is, the more significant the impact of technological innovation capability and economic development level is in enhancing the efficiency of the manufacturing. Moreover, the finance and insurance industry has no significant moderating effects.