(eks-ten'sÅr, -sÅr), [TA] 1  A muscle the contraction of which causes movement at a joint with the consequence that the limb or body assumes a more straight line, or so that the distance between the parts proximal and distal to the joint is increased or extended; the antagonist of a flexor. See: muscle.
All other things being equal, using internal rate of return (IRR) and net present value (NPV) measurements to evaluate projects often results in the same findings. However, there are a number of projects for which using IRR is not as effective as using NPV to discount cash flows.
We see that the NPV rule says that project B is better than project A (the same. ranking as the IRR rule) only for âhighâ values for the cost of capital, i.e., for a cost of. capital greater than 8.8169%. For values of the cost of capital below 8.8169% project A. is better.