12, 153 $18: 2 1. True (2) or False (1) There can be as many different internal rates of return as there are changes in the sign of the cash-flow stream. TES 13, WiFi Si: 2 1. True (ET) or False (1) As long as investors agree about a firm's prospects, they will also agree on the value of the stock. E 14, #JEF si: 2 1. True () or False (8) A disadvantage of a corporation is that complex management structures may lead to slower and expensive decision-making. TE 15, Winsti: 2 1. True (E) or False (1) Marginal cost is based on the principle that an additional unit of production will only entail an increase in the fixed costs and that the variable costs will not be affected. TE