技术创新成果溢出的分解研究

Studying on Decomposition of Technological Innovation Effects Spillover

“溢出”是近年来被广泛研究的一个课题，但现有研究主要限于国际间和部门间的创新溢出。本文在企业层面上研究技术的租金溢出与纯知识溢出，刻画了这两种不同类型溢出之间的本质区别。结果表明，纯知识溢出存在时滞性。在此基础上，作者构建了包括溢出时滞和知识退化在内的纯知识溢出模型。

“ Spillover” has been widely studied in the recent years. However, the existing literature has been focused mainly on cross－ sector and international technology spillover. The present paper studies rent－ spillovers and pure knowledge spillovers for a single firm and characterizes the essential difference between two kinds of spillover. The result indicates that there is spillover lags in pure knowledge spillovers. We also construct the models of pure knowledge spillover involved spillover lags and technological obsolescence.