20. Which of the following most accurately lists the steps in the four-step process for valuing
flexibility in the correct order?
a) 1. Estimate NPV without flexibility. 2. Model uncertainty in event tree. 3. Model flexibility in
decision tree. 4. Estimate contingent NPV.
b) 1. Estimate NPV without flexibility. 2. Model flexibility in decision tree. 3. Model uncertainty
in event tree. 4. Estimate contingent NPV.
c) 1. Model uncertainty using real-option valuation. 2. Model flexibility using decision tree
analysis. 3. Estimate NPV without flexibility. 4. Arithmetically weight the three results to
estimate contingent NPV.
d) 1. Model uncertainty using real-option valuation. 2. Model flexibility using decision tree
analysis. 3. Estimate NPV without flexibility. 4. Geometrically weight the three results to
estimate contingent NPV.
21. A project has a 50/50 chance of generating either a positive cash flow of $1 per year forever
or a zero cash flow. The discount rate is 5 percent. If the initial cost is $10, what is the NPV with
the option to stop after the first year?
a) –$10
b) $0
c) $10
d) $20
22. In the event tree used in the binomial approach to option valuation, at each node the value
either increases or decreases by the proportion u or d, respectively. If the annualized volatility
of the underlying asset’s value is 10 percent per year and the horizon is six months, what are
the up-movement u and down-movement d values?
a) 1.0488 and 0.9534
b) 1.0513 and 0.9511