Now suppose the manager of these 20 employees has announced that she will contribute d > 0 dollars for each dollar that an employee contributes. The warm glow effect to employee i from contributing a dollar is now b; X (1 + d) because each dollar contributed actually results in a total contribu- tion of 1 + d. Assume b; = 0.1 for i = 1, . . ., 5; b; = 0.2 for i = 6, . . . , 10; b; = 0.25 for i = 11, . . ., 15; and b; = 0.5 for i = 16, . . ., 20. d. What value must the manager choose for d in order to get her employ- ees to contribute $100