AFM291 Lecture Notes - Lecture 8: Startup Company, Net Present Value, Opportunity Cost
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Chapter 8: investment decision rules (cid:862)whe(cid:374) (cid:373)aki(cid:374)g a(cid:374) i(cid:374)(cid:448)est(cid:373)e(cid:374)t decisio(cid:374), take the alte(cid:396)(cid:374)ati(cid:448)e (cid:449)ith the highest npv. Choosi(cid:374)g this alte(cid:396)(cid:374)ati(cid:448)e is e(cid:395)ui(cid:448)ale(cid:374)t to (cid:396)ecei(cid:448)i(cid:374)g its npv i(cid:374) cash toda(cid:455). (cid:863) The npv is positive only for discount rates that are less than the internal rate of return (irr). It is the average return for taking on the investment opportunity. Rule: (cid:862)take a(cid:374)(cid:455) i(cid:374)(cid:448)est(cid:373)e(cid:374)t oppo(cid:396)tu(cid:374)it(cid:455) (cid:449)he(cid:396)e the irr e(cid:454)ceeds the oppo(cid:396)tu(cid:374)it(cid:455) cost of capital. Tu(cid:396)(cid:374) do(cid:449)(cid:374) a(cid:374)(cid:455) oppo(cid:396)tu(cid:374)it(cid:455) (cid:449)hose irr is less tha(cid:374) the oppo(cid:396)tu(cid:374)it(cid:455) cost of capital. (cid:863) In general, the irr rule works for a stand-alone project if all of the p(cid:396)oject"s (cid:374)egati(cid:448)e cash flo(cid:449)s precede its positive cash flows. Note: but in other cases the irr rule may disagree with the npv rule and thus be incorrect. Irr will not exist in situations where npv is positive for all values of the discount rate. Thus, in these situations, the irr rule cannot be used.