内生技术进步的生产率测算研究

On Productivity Accounting with Measures of Endogenous Technology

内生增长理论的核心在于将经济的长期均衡增长率视为内生因素决定 ,着重剖析决定内生技术进步的因素和作用机制 ,然而该理论的复杂和抽象 ,却使人们对其现实的应用望而却步。为此 ,论文主要分析和探讨了内生增长理论的两个主要模型 ,产品品种增加模型和产品质量升级模型在生产率测算中的应用 ,特别是分析了两个模型的生产函数和生产率测算公式。两种模型都揭示出经济中的研究与开发 (R&D)对全要素生产率(TFP)的影响 ,并为政府有关R&D公共政策的制定提供了启示。文章还认为 ,在测算TFP增长率时 ,传统新古典增长理论与内生增长理论的测算方式互为补充。

Growth accounting breaks down economic growth into components associated with changes in factor inputs and the Solow residual (TFP). The paper places the growth-accounting exercise within the context of two recent strands of endogenous growth theory-varieties-of-product models and quality-ladders models. Within this settings, the Solow residual can be interpreted in terms of the endogenously changing level of technology.