2[5]GIMENO J,FOLTA,COOPER.Survival of the fittest? entrepreneurial human capital and the persistence of underperforming firms[J].Administrative Science Quarterly,1997,42:750-784.
3[6]GRILICHES Z,REGEV.Firm productivity in Israeli industry 1979~1988[J].Journal of Econometrics,1995,65:175-203.
4[7]MAJUMDAR.The impact of human capital quality on the boundaries of the firms in the US telecommunications industry[J].Industrial and Corporate Change,1998,7(4):663-677.