知识产权保护“最适强度”下的服务业TFP增长及地区平衡

TFP Growth and Regional Balance in Service Sector under Optimal Strength of Intellectual Property Rights Protection

以完善的知识产权保护制度推动知识密集型产业(包括知识密集型服务业)的升级发展已经成为中国的当务之急。系统地剖析知识产权保护(IPR)影响知识密集型服务业全要素生产率(TFP)增长的正反向传导机制,进而分析知识产权保护“最适强度”与实际强度之间的偏差影响服务业TFP增长地区平衡的逻辑机制。结果表明:(1)我国知识产权保护已经成为知识密集型服务业TFP增长的第二动力;(2)知识产权保护对知识密集型服务业TFP增长的影响呈现“倒U型”特征,而且我国目前的知识产权保护实际强度是低于理论上的“最适强度”;(3)我国中部地区知识产权保护实际强度与其理论上“最适强度”的偏差较小,使得知识产权保护制度有助于缓解东部地区和中部地区知识密集型服务业发展的不平衡,同时扩大了东部地区对西部地区的领先优势。上述研究结论在运用不同IPR指标以及多种回归方法下依然十分稳健。

It's critical to promote knowledge-intensive industries to upgrade through perfect institute of intellectual property rights protection.This paper systematically analyses the positive and negative mechanisms of IPR on TFP in knowledge-intensive services,makes research on logic mechanism that the deviation between the optimal strength of IPR and the actual intensity affects regional balance of TFP growth in service industry.The conclusions are as follows:(1)IPR in China is the second important force to promote the increase of TFP in knowledge-intensive services.(2)The impact of IPR on TFP in knowledge-intensive services is firstly increased and then decreased,and the currently actual strength of IPR in China is weaker than theoretically optimal strength of IPR.(3)The actual strength of IPR is fairly close to the theoretically optimal strength of IPR in central part of China,which makes IPR contribute to the relief of unbalance of regional development in knowledge-intensive services between east part and central part in China,and expands the leading of the eastern region over the western region.The conclusions are robust when different IPR indices and various estimation methods are used.