When Projects are mutually exclusive which project should be selected using npv and risk level?

Problems with project ranking:

1. Mutually exclusive projects of unequal size (the size disparity problem) - the NPVdecision may not agree with the IRR or PI. Solution: select the project with the larges NPV (not IRR).

2. The time disparity problem with mutually exclusive projects - NPV and PI assume cash flows are reinvested at the required rate of return for the project. IRR assumes cash flows are reinvested at the IRR. NPV decision may not agree with the IRR. Solution: select the project with the largest NPV.

A good method to evaluate and rank project better is to use the Equivalent Annual Annuity (EAA) method. This is like calculating for PMT when doing TVM. It simply means, you will be getting that amount as an inflow each year or period. Therefore, you would want to choose the highest figure.