“incremental” cash flows. An allocated cost that will exist with or without the project
being analyzed does not belong in the investment analysis.
Any increase in administrative or staff costs that can be traced to the project is an
incremental cost and belongs in the analysis. One way to estimate the incremental
component of these costs is to break them down on the basis of whether they are fixed or
variable, and, if they are variable, what they are a function of. Thus, a portion of
administrative costs may be related to revenue, and the revenue projections of a new
project can be used to estimate the administrative costs to be assigned to it.
Illustration 5.3: Dealing with Allocated Costs
Case 1: Assume that you are analyzing a project for a retail firm with general and
administrative (G&A) costs currently of $600,000 a year. The firm currently has five
stores, and the new project will create a sixth division. The G & A Costs are allocated
evenly across the stores; with five stores, the allocation to each store will be $120,000.
The firm is considering opening a new store; with six stores, the allocation of G & A
expenses to each store will be $100,000.
In this case, assigning a cost of $100,000 for general and administrative costs to the
new store in the investment analysis would be a mistake, since it is not an incremental
cost –– the total G& A cost will be $600,000, whether the project is taken or not.
Case 2: In the analysis above, assume that all the facts remain unchanged except for one.
The total general and administrative costs are expected to increase from $600,000 to
$660,000 as a consequence of the new store. Each store is still allocated an equal amount;
the new store will be allocated one-sixth of the total costs, or $110,000.
In this case, the allocated cost of $110,000 should not be considered in the investment
analysis for the new store. The incremental cost of $ 60,000 [$660,000-$600,000],
however, should be considered as part of the analysis.
In Practice: Who Will Pay For Headquarters?
As in the case of sunk costs, the right thing to do in project analysis (i.e.,
considering only direct incremental costs) may not add up to create a firm that is
financially healthy. Thus, if a company like Disney does not require individual movies
that it analyzes to cover the allocated costs of general administrative expenses of the