Folks - There seems to be several major misconceptions above especially the reinvestment myth for IRR. Check out the article at http://www.propertymetrics.com/blog/2014/06/09/wha...
To quote:
The internal rate of return measures the return on the outstanding “internal” investment amount remaining in an investment for each period it is invested. The outstanding internal investment, as demonstrated above, can increase or decrease over the holding period. It says nothing about what happens to capital taken out of the investment.
The Myth of The Reinvestment Rate Assumption
One of the most commonly cited limitations of the IRR is the so called "reinvestment rate assumption." In short, the reinvestment rate assumption says that the IRR assumes interim cash flows are reinvested at the IRR, which of course isn't always feasible. The idea that the IRR assumes interim cash flows are reinvested is a major misconception that's unfortunately still taught by many business school professors today.