As part of my
continuous commitment to develop in-depth knowledge I started going through “Principles of Corporate Finance” by Brealey Myers and Allen 11

^{th}edition (ISBN-13 978-0-0771-5156-0).
This will take a
while as the book is over 800 pages long and has plenty of problems sets, at the
end of every chapter, which I am committed to solve. The interesting questions,
worth discussion or an additional attention will be posted here.

To check myself I
also bought Solutions Manual forPrinciples of Corporate Finance (Eleventh edition) prepared by Peter Crabb (ISBN
978-0-07-750247-8).

All solutions
described here are by no means complete or correct. So any use will be at your
own risk, although I would appreciate alternative solutions or discussion on
the subject.

Chapter 1, page 17
(Appendix question):

**Maximising shareholder value**. Peter Cormack has $200,000 available to support consumption in periods 0 (now) and 1 (next year). Peter wants to consume exactly the same amount in each period. The interest rate is 8%. There is no risk.

a. How
much should Peter invest, and how much can he consume in each period?

b. Suppose
Peter is given opportunity to invest up to $200,000 at 10% risk free. The
interest rate stays at 8%. What should he do, and how much can he consume in
each period?

Answers and
thoughts

a. Peter
should invest it all. If he invest 8%, he can either consume $200,000 now or
$216,000 a year from now. To calculate
equal consumption (C) in both year, we
need to use formula C=(200,000-C)*1.08, which will gives us C=103,846.

Note:

*remaining money (200,000-103,856) invested at 8% will generate 103,846 at the end of the first year.*
b. Investing
it all at 10% will generate 220,000 at the end of the year. If Peter decides to
consume all now, he could consume 200,000*1.10/1.08=$203,703.7

Note:

*This has very important assumption, that we are in well functioning capital markets in which you can borrow and lend at the same rate. As interest rate is 8%, it is assumed that you could easily sell your $220,000 at its present value, which at 8% interest is $203,703.7*
To
calculate equal consumption C =(203,703.7-C)*1.08 C=105,769.23 (There is small discrepancy
between the solution manual and this number).

(203,703.7-105,769.23)*1.08=105,769.23
at the end of the first year.

**Calculate present value of financial independence nest egg**. Historical market rate over the long (long) period of time was 7%, while inflation is 4%. This leaves at real growth of about 3% a year.

Should I retire in
30 years and have no further investment in my portfolio, how much money will
have for my retirements? 482,000*(1+.03)

^{30}=482,000*2.42=$1,169 in the current money. This should give $47,000 a year for 25 years.
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