Which of the following statements is correct? a. projects with "normal" cash flows can have only one real irr. b. projects with "nonnormal" cash flows are almost never encountered in the real world. c. projects with "normal" cash flows must have two changes in the sign of the cash flows, e. g., from negative to positive to negative. if there are more than two sign changes, then the cash flow stream is "nonnormal." d. the "multiple irr problem" can arise if a project's cash flows are "normal." e. projects with "normal" cash flows can have two or more real irrs.

Gary lives in an area that receives high rainfall and thunderstorms throughout the year. which device would be useful to him to maintain his computer?

The research of robert siegler and eric jenkins on the development of the counting-on strategy is an example of design.

1. consider a two-firm industry. firm 1 (the incumbent) chooses a level of output qı. firm 2 (the potential entrant) observes qı and then chooses its level of output q2. the demand for the product is p 100 q, where q is the total output sold by the two firms which equals qi +q2. assume that the marginal cost of each firm is zero. a) find the subgame perfect equilibrium levels of qi and q2 keeping in mind that firm 1 chooses qi first and firm 2 observes qi and chooses its q2. find the profits of the two firms-n1 and t2- in the subgame perfect equilibrium. how do these numbers differ from the cournot equilibrium? b) for what level of qi would firm 2 be deterred from entering? would a rational firm 1 have an incentive to choose this level of qi? which entry condition does this market have: blockaded, deterred, or accommodated? now suppose that firm 2 has to incur a fixed cost of entry, f> 0. c) for what values of f will entry be blockaded? d) find out the entry deterring level of q, denoted by q1', a expression for firm l's profit, when entry is deterred, as a function of f. for what values of f would firm 1 use an entry deterring strategy?