8Arthur, W B (1989), "Competing technologies, increasing returns and lock - in by historical events", Economic Journal 99:116- 131
9Bebchuk, L & M J Roe (1998), "A theory of path dependence in corporate ownership and governance" In Corporate Governance Today, The Sloan Project on Corporate Governance at Columbia Law School
10Campbell, J, J Hollingsworth, & L Lindberg, eds ( 1991 ),Governance of the American Economy, Cambridge University Press