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Chapter 11: Cost Concepts and Conundrums
Accounting versus economic costs
Accountants focus mainly on
actual costs
(though they disagree regarding how exactly to
measure these costs). Actual costs are rooted
in the actual, or historical, transactions and
operations of a business. Accountants also
determine
budgeted costs
for businesses that
prepare budgets (see Chapter 10), and they
develop
standard costs
that serve as yardsticks
to compare with the actual costs of a business.
Other concepts of cost are found in economic
theory
.
You encounter a variety of economic
cost terms when reading
The Wall Street
Journal,
as well as in many business discus-
sions and deliberations. Don’t reveal your igno-
rance of the following cost terms:
Opportunity cost: The amount of income (or
other measurable benefit) given up when
you follow a better course of action. For
example, say that you quit your $50,000 job,
invest $200,000 to start a new business, and
end up netting $80,000 in your new business
for the year. Suppose also that you would
have earned 5 percent on the $200,000 (a
total of $10,000) if you’d kept the money in
whatever investment you took it from. So
you gave up a $50,000 salary and $10,000 in
investment income with your course of
action; your opportunity cost is $60,000.
Subtract that figure from what your actual
course of action netted you — $80,000 —
and you end up with a “real” economic
profit of $20,000. Your income is $20,000
better by starting your new business
according to economic theory.
Marginal cost: The
incremental,
out-of-
pocket outlay required for taking a particu-
lar course of action. Generally speaking, it’s
the same thing as a
variable
cost (see
“Fixed versus variable costs,” later in this
chapter). Marginal costs are important, but
in actual practice managers must recover
fixed (or nonmarginal) costs as well as mar-
ginal costs through sales revenue in order
to remain in business for any extent of time.
Marginal costs are most relevant for ana-
lyzing one-time ventures, which don’t last
over the long-term.
Replacement cost: The estimated amount it
would take today to purchase an asset that
the business already owns. The longer ago
an asset was acquired, the more likely its
current replacement cost is higher than its
original cost. Economists are of the opinion
that current replacement costs are relevant
in making rational economic decisions. For
insuring assets against fire, theft, and nat-
ural catastrophes, the current replacement
costs of the assets are clearly relevant.
Other than for insurance, however, replace-
ment costs are not on the front burners of
decision-making — except in situations in
which one alternative being seriously con-
sidered actually involves replacing assets.
Imputed cost: An ideal, or hypothetical, cost
number that is used as a benchmark or yard-
stick against which actual costs are com-
pared. Two examples are
standard costs
and
the
cost of capital.
Standard costs are set in
advance for the manufacture of products
during the coming period, and then actual
costs are compared against standard costs
to identify significant variances. The cost of
capital is the weighted average of the inter-
est rate on debt capital and a target rate of
return that should be earned on equity capi-
tal. The
economic value added
(EVA) method
compares a business’s cost of capital
against its actual return on capital, to deter-
mine whether the business did better or
worse than the benchmark.
For the most part, these types of cost aren’t
reflected in financial reports. I’ve included them
here to familiarize you with terms you’re likely
to see in the financial press and hear on finan-
cial talk shows. Business managers toss these
terms around a lot.
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