This chapter discusses how to evaluate and select between mutually exclusive capital investment alternatives by examining their cash flows over time using discounted cash flow methods like net present value. It outlines how the alternative with the lowest initial investment that provides satisfactory results should be chosen, unless a larger investment's incremental benefits exceed its incremental costs when discounted at the firm's minimum acceptable rate of return. The chapter also covers how to compare investment and cost alternatives by looking at their net present values and internal rates of return relative to the minimum acceptable rate of return.