This document discusses various capital budgeting techniques used to evaluate investment projects. It defines capital budgeting as the process of identifying, analyzing and selecting long-term investment projects. The key techniques covered are payback period, internal rate of return (IRR), net present value (NPV) and profitability index (PI). For an example project with $10,000-$15,000 cash flows over 5 years and $40,000 initial cost, the document calculates the metrics and determines that the project should be rejected based on IRR, NPV and PI, though accepted by payback period. It also discusses how the techniques can provide contradictory results for mutually exclusive projects.