1. Zsidisin and Wagner, Do Perceptions Become Reality?: The Moderating Role of Supply Chain Resiliency on Disruption Occurrence,” Journal of Business Logistics , Vol. 31 No. 2, pp. 1-20 (2010). 2. Milne, Richard, "Early Warnings in the Supply Chain," Financial Times Europe, No. 36957,p p. 10 (2010). 3. Wagner, S.M and J.L Johnson, “Configuring and managing strategic supplier portfolios”, Industrial Marketing Management, vol 33, pp. 717-730 (2004). 4. Black F. and M. Scholes, “The Pricing of Options and Corporate Liabilities, The Journal of Political Economy, Vol. 81, No. 3. (May - Jun., 1973), pp. 637-654 (1973). 5. D.S.Levi, P.Kaminsky and E. Simchi-Levi "Chapter 3: Inventory Management and Risk Pooling"; Designing & Managing the Supply Chain, Second Edition (p-66) (2003). 6. Hillegeist, Stephen A., Elizabeth K. Keating, Donald P. Cram, and Kyle G. Lundstedt, "Assessing the Probability of Bankruptcy", Review of Accounting Studies, Vol. 9, No. 1, pp. 5-34 (2004).