Chapter 5 – Activity-Based Costing and Customer Profitability Analysis
The following questions were not part of the requirements in the case competition. The questions
could serve as the basis for the final question in the live presentations at the Annual Meeting. Also,
the suggested solutions might give you ideas as to what represents a more in-depth or insightful
analysis of the case, which may help judges evaluate the teams.
Additional possible questions
Question 2 could be revised to give a more directed focus by changing the wording as follows:
“Management of Customer Paint Shop used ABC to obtain a better understanding the “true” cost of the
products. Management is now working toward a more proactive approach to capacity utilization, and
TOC costing has been suggested and some additional cost analysis was done. Discuss the potential
strategic value of the ABC versus TOC cost information in making decisions about the use of existing
capacity.” This wording offers the opportunity to spend time focusing on ABC and TOC would allow the
instructor to avoid or delay dealing with RCA if desired.
Possible solution: TOC promotes focusing on the contribution margin per unit of scare
resource, but this approach to managing a scarce resource would be a short-term approach to developing a
Also, TOC is not a panacea. For example, TOC looks at the constrained resource while a technique like
JIT looks to improve all processes, not just the process related to the constrained resource. The JIT
approach allows for a deeper understanding of all processes and their interrelationships that may not be
gained from a strict TOC approach. Thus potentials for uncovering opportunities may also be missed
from a strict TOC approach. Also, TOC takes only a short-term view of capacity utilization, whereas a
process like activity-based costing takes a longer-term perspective.
Other possible questions:
The case states the change to ABC “was made to better understand the costs associated with
painting the various products.” How effective is ABC in supporting such an objective as compared to
TOC and RCA. This question changes the context of the comparison to highlight that different tools
might be preferred for different purposes and reinforce the need to understand more than one costing
concept in order to be able to decide when a tool might be most effective.
The instructor could ask the students to identify the characteristics that make an organization’s
processes a candidate for the use of RCA and comment on whether PPS meets each of those
characteristics.
Possible solution: Grasso (2005, p.16)
The approach assigns resource elements to resource centers using the following criteria
1. The center must have an identifiable, measurable output and identifiable, separable costs specific
The paint booths along the conveyor line display these characteristics, making PPS a candidate for RCA.
References
Grasso, LawrenceP., 2005, Are ABC and RCA Accounting Systems Compatible with Lean Management?,
Management Accounting Quarterly, Fall, 2005, Vol. 7, No. 1, pp.12-27
Johnson, H. Thomas, Relevance Regained: From Top-down Control to Bottom-up Empowerment, Free
Press, New York, NY, 1992, p.139.
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Education.