
Chapter 3 Present values and financial arithmetic 61
3.2 MEASURING WEALTH
‘Cash flow is King’ seems to be the message for businesses today. Spectacular business
collapses in recent years demonstrate that reliance on profits or earnings per share as
measures of performance can be dangerous.
The chairman of a fast-growing company that went out of business stated in the
annual report: ‘Last year, we delivered a 425% increase in turnover from £19.9 million
to £109.8 million.’ But when the firm was placed into the hands of the receiver the fol-
lowing year, it was not the lack of sales or even profits that put it there. It was the lack
of cash. Businesses go ‘bust’ because they run out of the cash required to fulfil their
financial obligations. Of course, there are always reasons why this happens – recession,
an over-ambitious investment programme, rapid growth without adequate long-term
finance – but basically corporate survival and success come down to cash flow and
value creation.
Boo.com, the internet fashion retailer, thought it had a promising future at the start
of 2000. It had raised $135 million to set up the new business and invest in marketing
to break into the competitive fashion retail sector. But less than six months later, it had
virtually run out of cash and was forced into liquidation.
Recall from Chapter 1 that the assumed objective of the firm is to create as much
wealth as possible for its shareholders. A successful business is one that creates value
for its owners. Wealth is created when the market value of the outputs exceeds the
market value of the inputs, i.e. the benefits are greater than the costs. Expressed
mathematically:
V
j
B
j
C
j
The value (V
j
) created by decision j is the difference between the benefits (B
j
) and
the costs (C
j
) attributable to the decision. This leads to an obvious decision rule: accept
only those investment or financing proposals that enhance the wealth of shareholders,
i.e. accept if B
j
C
j
0.
Nothing could be simpler in concept – the problems emerge only when we probe
more deeply into how the benefits and costs are measured and evaluated. One obvi-
ous problem is that benefits and costs usually occur at different times and over a num-
ber of years. This leads us to consider the time-value of money.
3.1 INTRODUCTION
The introductory investment parable, taken from business life in 1st century Palestine,
is equally appropriate to present times. Managers are expected to make sound long-
term decisions and to manage resources in the best interests of the owners. To do oth-
erwise is to risk the wrath of an unmerciful stock market! Rather like the lazy servant
in the parable, Eurotunnel put the £10 billion entrusted to it by shareholders and
bankers into a ‘hole in the ground’ stretching from Dover to Calais. From an investment
perspective they would have done better letting it earn interest in a bank.
To assess whether investment ideas are wealth-creating, we need to have a clear
understanding of cash flow and the time-value of money. Capital investment deci-
sions, security and bond value analyses, financial structure decisions, lease vs. buy
decisions and the tricky question of the required rate of return can be addressed only
when you understand exactly what the old expression ‘time is money’ really means.
In this chapter we will consider the measurement of wealth and the fundamental
role it plays in the decision-making process; the time-value of money, which underlies
the discounted cash flow concept; and the net present value approach for analysing
investment decisions.
time-value of money
Money received in the future is
usually worth less than today
because it could be invested to
earn interest over this period
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