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The discounted payback period (DPB) is the amount of time that it takes (in years) for the initial cost of a project to equal to the discounted value of expected cash flows, or the time it takes to break even from an investment. [1] It is the period in which the cumulative net present value of a project equals zero.
Payback also ignores the cash flows beyond the payback period. Most major capital expenditures have a long life span and continue to provide cash flows even after the payback period. Since the payback period focuses on short term profitability, a valuable project may be overlooked if the payback period is the only consideration.
The cash flows are made up of those within the “explicit” forecast period, together with a continuing or terminal value that represents the cash flow stream after the forecast period. In several contexts, DCF valuation is referred to as the "income approach" .
Only negative cash flows — the NPV is negative for every rate of return. (−1, 1, −1), rather small positive cash flow between two negative cash flows; the NPV is a quadratic function of 1/(1 + r), where r is the rate of return, or put differently, a quadratic function of the discount rate r/(1 + r); the highest NPV is −0.75, for r = 100%.
Each cash inflow/outflow is discounted back to its present value (PV). Then all are summed such that NPV is the sum of all terms: = (+) where: t is the time of the cash flow; i is the discount rate, i.e. the return that could be earned per unit of time on an investment with similar risk
The discounted cash flow (DCF) analysis, in financial analysis, is a method used to value a security, project, company, or asset, that incorporates the time value of money. Discounted cash flow analysis is widely used in investment finance, real estate development, corporate financial management, and patent valuation. Used in industry as early ...
Absolute value models ("Intrinsic valuation") that determine the present value of an asset's expected future cash flows. These models take two general forms: multi-period models such as discounted cash flow models, or single-period models such as the Gordon model (which, in fact, often "telescope" the former). These models rely on mathematics ...
Under each of the above headings: financial managers have to use the following financial figures as part of the evaluation process to determine if a proposal should be accepted. Payback period with NPV (Net Present Value), IRR (internal rate of return) and DCF (Discounted Cash Flow).