1) Which option delivers the maximum profit for the supply chain: Sandra's plan, Bill's plan, or no promotion plan at all?
2) How does the answer change if a discount of Rs. 10 must be given to reach the same level of impact that the Rs. 5 discount received?
3) Suppose Sandra's fears about increasing out-sourcing costs come to fruition and the cost rises to Rs. 22/unit for subcontracting. Does this change the decision when the discount is Rs. 5?