7Augustine S. Langyintuo,Wilfred Mwang. Challen- ges of the maize seed industry in eastern and south- ern Africa: A compelling case for private-public in- tervention to promote growth [J]. Food Policy, 2010, 123(2), 323-331.
8Michael L. Morris,R. P. Singh. India's maize seed industry in transition: changing roles for the public and private sectors [J]. Pergamon, 1998, (1),55- 71.
9Decio Zylbersztajn,S6rgio G. Lazzarini. On the sur- vival of contracts: assessing the stability of technol- ogy licensing agreements in the Brazilian seed indus- try [J]. Journal of Economic Behavior b- Organiza- tion, 2005, 123(2), 103-120.
4ISARDW.Methods of Regional Analysis,An Introduction to Region-al Science[J].New York:W iley Technology Press,1960:16-18.
5KHALID NADVI·Collective Efficiency and Collective Failure:TheRe-sponse of the Sialkot Surgical Instrument Cluster to Global Quality Pressures[J].World Development,1999,27(9):1605-162.
6Richard L·Priem&Join E·Butler·Tautology in the Resoure-based View and the Implications of Externally Determined Resource Value:Further Comments[J] The Academy of Management Review,2001,(1):41-56.
7McCann,Arita and Gordon.Industrial Clusters,Transactions Costs and the Institutional Determi-nants of MNE Location Behaviour[J].International BusinessReview 2002,(11):647-663.
