What do a project's sign changes say about how many IRRs it has, and why do politics move decisions that NPV leaves out?
Loading…
Descartes' rule of signs for counting IRRs
State that the number of IRRs above −100% equals the number of sign changes or fewer by an even number, and apply it to Project 2's cash flows with their three IRRs.
IRR as a polynomial root, and the four-condition case
Write the IRR equation as a polynomial in , record that sign and magnitude patterns can produce almost any NPV curve, and list the four conditions under which IRR agrees with NPV.
Bear Stearns rescued, Lehman Brothers allowed to fail
Record the 2008 events with their dates, the conjecture that the backlash to the Bear Stearns rescue shaped the Lehman decision, and that politics reaches even market prices.
Politics inside a firm
Describe the new division manager's honeymoon as the example of a political force outside P&L and NPV, and record that NPV maximization is an approximation to a more complex reality.