2Freeman, Chris. and Soete, Luc, 1997. The Economic of Industrial Innovation(Third Edition ). London : Pinter.
3Enriquez, Juan and Goldberg, Ray A. 2000. " Transforming Life,Transforming Business: The Life- Science Revolution." Harvard Business Review, March - April , pp.96 - 104.
4Fogel, Robert W., 1999."Catching up with Economy." The American Economic Review. Vol. 89, No. 1, pp. 1 - 20.
5Lovins, Amory B. et al.1999. "A Road Map for Natural Capitalism. "Harvard Business Review, May - June, pp. 143 - 157.
6Rmnus, C R and Steger , Ulrich. 2000. "The Roles Supervisory Support Behaviors and Environmental Policy in Employee ' Ecoinitiatives' at Leading- Edge European Companies. " Academy of Management Journal,Vol. 43, No.4, pp. 605 - 626.
7Bansal, Pratima and Kendall Roth,2000. "Why Companies Go Green: A Model of Ecological Responsiveness. "Academy of Management Journal,Vol.43, No.4, pp.717 - 736.