5. Jill's coffee and Joes coffee are competing in the local ice cream market. The following table depicts their increase in profits from starting to sell either ice cream or frozen yogurt: Joe's Coffee Ice cream Frozen Yogurt Ice cream 150,0 150, 300 Jill's Coffee Frozen Yogurt 400, 150 50, 50 a. Do either of the firms have a dominant strategy? If so, what is it? b.What is the equilibrium if both firms choose simultaneously? 3 c.If this interaction is a sequential interaction and Jill moves first, what is the equilibrium? d. What non-credible threat could Joe make in order to try to increase his profits from part c above? What makes this a non-credible threat?