The article builds upon Lucas model and neoclassic increase model,it has established human capital s spills-over effects two area models in the urban and rural,at the same time it further analysis human capital s spills-over effect s inner overflow only in city,on the contrary,the human capital s spills-over effects mainly embodies outside overflow from ru.

Endogenous Spillovers and the Incentive Problem on R&D Competition or Cooperation;

And the product difference between firms increases with the function non-substitutive rate,but the endogenous spillovers decrease with it.

Systematic stability of software and reliable be to judge important software system mass index, that memory overflow a form and the database deadlock is to destroy the working stable system key factor.

Foreign firms will prevent intra-industry spillovers to their competitors,but prefer to supply technology transfer through inter-industry spillovers.