2William N Leonard.Research and development in industrial growth[J].The Journal of Political Economy,1973,(5):1249-1252.
3Ben Branch.Research and development activity and profitability:A distributed lag analysis[J].The Journal of Political Economy,1974(5):999-1011.
4Hitt,M.A.,R.E.Hoskisson,H.Kim.International Diversification:Effects on Innovation and Firm Performance in Product-diversified Firms[J].Academy of Management Journal,40(4):767-798.
5Nohria,N.,Gulati,R.Is slack good or bad for innovation?[J].Academy of Management Journal,1996,39(5).
