Driver analysis is concerned with identifying the root causes of activity costs.. Thus, it may be necessary to also identify the optimal level of the cost driver so that only nonvalue
Trang 1ACTIVITY- BASED MANAGEMENT
QUESTIONS FOR WRITING AND DISCUSSION
1 The two dimensions are the cost dimension
and the process dimension The cost
di-mension is concerned with accurate
as-signment of costs to cost objects, such as
products and customers Activity-based
costing is the focus of this dimension The
second dimension—the process
dimen-sion—provides information about why work
is done and how well it is done It is
con-cerned with cost driver analysis, activity
analysis, and performance measurement
This dimension offers the connection to the
continuous improvement world found in the
advanced manufacturing environment
2 A functional-based responsibility accounting
system is characterized by four elements:
(1) a responsibility center, where
responsi-bility is assigned to an individual in charge
(responsibility is usually defined in financial
terms); (2) the setting of budgets and
stan-dards to serve as benchmarks for
perform-ance measurement; (3) measurement of
performance by comparing actual outcomes
with budgeted outcomes; and (4) individuals
being rewarded or penalized according to
management policies
3 In an activity-based responsibility accounting
system, the focus of control shifts from
re-sponsibility centers to processes and teams
Management is concerned with how work is
done, not with where it is done Process
im-provement and process innovation are
em-phasized Standards tend to be optimal,
dy-namic, and process oriented Performance
measurement focuses on processes and
ac-tivities that define the processes Finally,
there tends to be more emphasis on group
rewards than on individual rewards
4 Driver analysis is concerned with identifying
the root causes of activity costs Knowing
the root causes of activity costs is the key to
improvement and innovation Once a
man-ager understands why costs are being
in-curred, then efforts can be taken to improve
5 Activity inputs are the resources consumed
by an activity in producing its output Activity output is the result or product of an activity Activity output measurement simply means the number of times the activity is per- formed
6 Activity analysis is concerned with
identify-ing activities performed by an organization, assessing their value to the organization, and selecting and keeping only those that are value adding Selecting and keeping value-adding activities brings about cost re- duction and greater operating efficiency, thus providing support for the objective of continuous improvement
7 Value-added activities are necessary
activi-ties Activities are necessary if they are mandated or if they are not mandated and satisfy three conditions: (1) they cause a change of state, (2) the change of state is not achievable by preceding activities, and (3) they enable other activities to be per- formed Value-added costs are costs caused
by activities that are necessary and
efficient-ly executed
8 Nonvalue-added activities are unnecessary
activities or those that are necessary but efficient and improvable An example is moving goods Nonvalue-added costs are those costs caused by nonvalue-added ac- tivities An example is the cost of materials handling
9 (1) Activity elimination—the identification
and elimination of activities that fail to add value (2) Activity selection—the process of choosing among different sets of activities caused by competing strategies (3) Activity reduction—the process of decreasing the time and resources required by an activity (4) Activity sharing—increasing the efficien-
cy of necessary activities using economies
of scale
Trang 2lute levels are value-added costs Any
dif-ference between the actual costs incurred
and the ideal costs are nonvalue-added
costs
11 Trend reports will reveal the progress made
over time in reducing nonvalue-added costs
12 A kaizen standard is the planned
improve-ment for the coming period The kaizen
sub-cycle implements the improvement, checks
it, and locks it in and then begins a search
for additional improvements The
mainten-ance subcycle sets a standard based on
prior improvements, executes, and checks
the results to make sure that performance
conforms to the new results If not, then
cor-rective action is taken
13 Benchmarking identifies the best practices
of comparable internal and external units
For internal units, information can be
ga-thered that reveals how the best unit
achieves its results; these procedures can
then be adopted by other comparable units
For external units, the performance standard
provides an incentive to find ways to match
the performance (it may sometimes be
poss-ible to determine the ways the performance
is achieved)
14 If individuals are asked to reduce costs and
are told what the activity driver is, they may
decrease the level of the driver below that
which is optimal Thus, it may be necessary
to also identify the optimal level of the cost
driver so that only nonvalue-added costs are
eliminated
15 The activity volume variance is a measure of
the nonvalue-added costs The unused
ca-pacity variance tells how much of the
commit-ted resources are not being used This
in-formation is particularly important because it
helps managers know when they can take
actions to reduce nonvalue-added costs
16 Activity-based customer costing can identify
what it is costing to service different tomers Once known, a firm can then devise
cus-a strcus-ategy to increcus-ase its profitcus-ability by cusing more on profitable customers, con- verting unprofitable customers to profitable ones where possible, and “firing” customers that cannot be made profitable
fo-17 Activity-based supplier costing traces all
supplier-caused activity costs to suppliers This new total cost may prove to be lower than what is signaled simply by purchase price
Trang 3Rework rate = $600,000/20,000 = $30 per rework hour
= $2,250,000
Unit overhead cost = $2,250,000/100,000 = $22.50
Improving the accuracy reduced the cost by $7.50, which is still less than the
$10 reduction needed What this means is that although accuracy has a tive effect on the price, it is not the only problem It appears that competitors may be more efficient than Timesaver This outcome then signals the need to reduce costs
posi-2 Since testing and rework costs and setup and rework time are both reduced
by 50%, the activity rates remain the same, although the amount of cost signed to the regular microwave will change:
= $1,875,000
Unit cost = $1,875,000/100,000 = $18.75
This cost now is $11.25 less than the original allows management to reduce the price by $10, increasing the competitive position of the regular model ABC is concerned with how costs are assigned, whereas ABM is not only concerned with how they are assigned but also with how costs can be re- duced Cost accuracy and cost reduction are the dual themes of ABM
Trang 4of a team looking for ways to improve procurement
Situation 2: In a functional-based responsibility system, individuals in charge of responsibility centers are rewarded based on their ability to achieve the financial goals of the responsibility center Thus, meeting budget promises the “fat” bo- nus In a continuous improvement environment, process improvement is depen- dent on team performance, so rewards tend to be group based, and gainsharing
is often used Furthermore, there are many facets to process performance other than cost, so the performance measures tend to be multidimensional (e.g., quality and delivery time)
Trang 5Situation 3: In a functional-based system, efforts are made to encourage uals to maximize the performance of the subunit over which they have responsi- bility The concern of activity-based responsibility accounting is overall organiza- tional performance The focus is systemwide It recognizes that maximizing individual performance may not produce firmwide efficiency
individ-Situation 4: In a functional-based system, performance of subunits is usually financial-based and is measured by comparing actual with budgeted outcomes In
an activity-based system, process performance is emphasized The objective is to provide low-cost, high-quality products, delivered on a timely basis Thus, both financial and nonfinancial measures are needed
Situation 5: In a functional-based system, budgets and standards are used to control costs In an activity-based responsibility system, the focus is on activities because activities are the cause of costs Driver analysis and activity analysis are fundamental to the control process Driver analysis recognizes that controlling costs requires managers to understand the root causes Activity analysis is the effort expended to identify, classify, and assess the value content of all activities Once the value content is known, then costs can be controlled through such means as activity reduction, activity elimination, activity sharing, and activity se- lection
Situation 6: A functional-based system uses currently attainable standards that allow for a certain amount of inefficiency Achieving the standard is the empha- sis, and there is no effort to improve on the standards themselves An activity- based approach strives for the ideal, and so the standard is the ideal Progress is measured over time with the expectation that performance should be continually improving Efforts are made to find new ways of doing things and, thus, to find new optimal standards The objective is to always provide incentives for positive changes
Situation 7: The functional-based system tends to ignore a firm’s activities and the linkages of those activities with suppliers and customers It is internally fo- cused An activity-based system builds in explicit recognition of those linkages and emphasizes the importance of the value chain Furthermore, the assessment
of the value content of activities is explicitly related to customers What goes on outside the firm cannot be ignored
Trang 65–3
The ABM implementation is taking too long and is not producing the expected sults It also appears to not be integrated with the division’s official accounting system, thus encouraging managers to continue relying on the old system (as evidenced by the continued reliance on traditional materials and labor efficiency variances) The fact that the ABC product costs are not significantly different in many cases could be due to a lack of product diversity or perhaps due to poor choices of pools and drivers The lack of a competitive cost state suggests the presence of significant nonvalue-added costs The emphasis on the absence of product cost differences, lack of cost reductions, and the attitude about activity detail and the value content of inspection all reveal that plant managers have a very limited understanding about ABM and what it can do There clearly needs to
re-be a major effort to train managers to understand and use activity data At this point, there is no organizational culture that emphasizes the need for continuous improvement This need and the role ABM plays in continuous improvement needs to be taught The new ABM system also needs to be integrated to maximize its chances for success
5–4
1 David was concerned about meeting the schedule and staying within the 5 percent variance guideline The first week’s production exceeded the guide- line for both materials and labor, and he expected the same outcome for the second week By stopping inspections, no materials waste would be ob- served and recorded for the second week, moving the usage variance back within the 5 percent tolerance level Accepting all units produced also will re- duce the total labor time reported Finally, using inspectors as production la- bor and counting their time as inspection labor provides some “free” direct labor time, which would also contribute to the reduction or elimination of an unfavorable labor efficiency variance David’s behavior is unethical David (and perhaps others) is deliberately subverting the organization’s legitimate and ethical objective of providing a high-quality product used in the manufac- ture of an airplane—in exchange for a favorable performance rating and, pre- sumably, a good salary increase or bonus Although no explicit information is provided, the stress test seems to imply an important safety role for the bolts
in the airplane structure If true, then David’s actions become even more questionable
Trang 72 There appears to be an overreliance on standards and variances There also appears to be a strong internal focus—David did not give much consideration
to the effect of his decision on the company’s customers The reward ture seems to be tied to the ability of David to meet or beat standards, and this provides some incentive to engage in perverse and even unethical beha- vior The system certainly works against the goal of zero defects and total quality An activity-based system would tend to mitigate the problem because
struc-it encourages a multidimensional performance measurement For example, quality measures are important Failure to meet measures on one dimension may be offset to some extent by good performance on other dimensions A strategic-based approach would mitigate the behavior even more, as it adopts
a customer focus, and performance measures relating to such things as tomer satisfaction are introduced Furthermore, more effort is made to link the performance measures with the company’s mission and strategy
cus-Finally, by communicating the strategy through the use of performance measures of various perspectives, a strategic-based approach tends to align individual goals with those of the organization However, it should be men- tioned that designing a system with perfect incentives is difficult Ultimately, the firm must rely on the character of its employees to carry out its objec- tives
3 The first week’s experience indicates a fairly high defect rate—between 7 and
8 percent—which was expected to continue for the second week Apparently, item-by-item inspection is the company’s way of ensuring reliable bolt per- formance Abandoning the inspection process for a week simply to meet in- ternal reporting standards seems like a weak excuse, even if a return to nor- mal practices is expected All too often, this sort of rationalization leads to repeated violations of norms to meet short-term goals, and it becomes part of the culture—to the point where it doesn’t appear to be wrong anymore Fun- damentally, the need for inspection and the high reject rate suggests that the company needs to think about ways of improving its manufacturing process
to reduce the number of defective units This is why an activity- or based approach may be more suitable because they both have a process fo- cus that emphasizes quality and efficiency Production of defective units would not be encouraged
Trang 8strategic-5–5
The following are possible sets of questions and answers (provided as examples
of what students could suggest):
Cleaning oil:
Question: Why is the oil puddle cleaned daily?
Question: Why does the production equipment leak oil?
Question: How do we repair the damaged seal?
Providing sales allowances:
Question: Why are we giving sales allowances?
Question: Why is the product not working as it should?
Question: Why does it have a defective component?
components
Question: Why do our subassembly processes produce bad components?
cause)
Question: How do we improve the skills of our workers?
Trang 9Nonvalue-added:
doc-Question 1: Why are we resolving discrepancies?
compared and found to be in disagreement
Question 2: Why are documents being compared?
Question 3: Why would the documents not agree?
Question 4: Why would a document be wrong?
to the amount ordered or because the amount billed may not pond to the amount received or both
corres-Question 5: Why are the amounts different?
Question 6: How can we avoid clerical error?
suppliers, extra training and care can be suggested where there is evidence of a problem
Trang 105–8
1 A process is a collection of activities with a common objective The common objective of procurement is to supply bought and paid for materials to opera- tions (e.g., the manufacturing process) The common objective of purchasing
is to produce a request for materials from suppliers; the common objective of receiving is to process materials from suppliers and move them to the opera- tions area (e.g., stores or manufacturing); the common objective of paying bills is to pay for the materials received from suppliers
2 The effect is to reduce the demand for the activity of resolving discrepancies
clerical time Thus, about four clerks can be eliminated (21% * 20 clerks = 4 clerks eliminated) by reassigning them to other areas or simply laying them off This will produce savings of about $120,000 per year (4 clerks * $30,000 salary) This is an example of process improvement—an incremental increase
in process efficiency resulting in a cost reduction
5–9
EDI eliminates the demand for virtually all the activities within the bill-paying process Some demand may be left for payment activities relative to the acquisi- tion of nonproductive supplies Assuming conservatively that 90 percent of the demand is gone, then there would be a need for perhaps two clerks (10% * 20 clerks = 2 remaining clerks) This would save the company $540,000 (18 clerks *
$30,000 salary) per year for this subprocess alone Additional savings would be realized from reduction of demands for purchasing and receiving activities Switching to an EDI procurement structure is an example of process innovation
Trang 11Case Nonvalue-Added Cost Root Cause Cost Reduction
Fixed activity rate = SP = $252,000/28,800 = $8.75 per order
Cost of unused capacity:
The activity volume variance measures the nonvalue-added cost The unused
capacity variance is a measure of the potential to reduce the spending on an
activity and, thus, reduce the nonvalue-added costs
Trang 12A value-added cost report would be as follows:
Highlighting nonvalue-added costs shows managers where savings are ible and emphasizes the need for improvement In this case, reducing orders processed to 14,400 will create unused capacity of 14,400 orders, allowing the company to save $126,000 in salaries
poss-3 First, the value-added standard is nonzero Second, purchasing enables other activities to be performed Third, there is a change of state—from a state of
no materials requested to a state of materials requested Fourth, the purchase state could not have been achieved by a prior activity Fifth, it is a necessary activity—one essential for the firm to remain in business
Possible reasons for exceeding the value-added standard: suboptimal tory management policies, reorders due to bad parts being delivered by sup- pliers, extra orders due to rework requirements, and additional orders be- cause the wrong types and quantities of materials were ordered
inven-4 By reducing the demand by another 6,000 units, the unused capacity will now equal 7,200 orders—an amount equivalent to 1.5 purchasing agents Thus, the number of purchasing agents can be reduced from 6 to 5, saving $42,000
Trang 131 Willson Company
For the Year Ended December 31, 2005
5–13
For the Year Ended December 31, 2006
Trang 14man-5–14
1 Activity and driver analysis:
Setting up equipment: This is a value-added activity because (1) it causes a change in the state of nature: improperly configured equipment to properly configured equipment, (2) there is no prior activity that could have caused the state change, and (3) it is necessary to enable other activities to be per- formed However, setting up equipment often takes more time than needed and so this activity has a nonvalue-added component Most companies strive for zero setup time Thus, the time and associated cost are nonvalue-added because the activity is performed inefficiently Means should be explored to reduce the time of this activity so that it consumes fewer resources Possible root causes include such factors as product design, process design, and equipment design Knowing the root causes can lead to an improvement in activity efficiency Moving from a departmental manufacturing structure to a cellular manufacturing structure in some cases may eliminate the need for se- tups, thus eliminating the activity, or flexible manufacturing equipment might
be purchased that provides an almost instantaneous setup capability (a change in process technology—and certainly a change in equipment design)
In other cases, the activity may be improved by redesigning the product so that a less complicated setup is required
Creating scrap: This is generally viewed as a nonvalue-added activity and should be eliminated It is nonvalue-added because it causes a nondesired change of state and because it does not enable other value-added activities to
be performed Efforts should be made to find ways of producing that nate scrap Possible root causes include poor vendor quality, quality man- agement approach, and manufacturing process used Knowing the root caus-
elimi-es may lead to a supplier valuation program that improvelimi-es the quality of the parts and materials purchased externally, adoption of a total quality manage- ment program, and perhaps the use of automated equipment to cut down on material waste (because of greater precision)
Welding subassemblies: This is a value-added activity It causes a desired state change that could not have been done by preceding activities and enables other activities to be performed If inefficient, then means should be sought to improve efficiency The goal is to optimize value-added activity per- formance Possible root causes include product design, process design, and production technology Changing either of the two designs could decrease the demand for the welding activity while producing the same or more output
A change in technology—buying more advanced technology, for example— may also increase the efficiency of the activity
Trang 15Materials handling: This is a nonvalue-added activity Moving materials and subassemblies from one point in the plant changes location but not the state But it does enable other activities to be performed, and it is not a repeated ac- tion If you argue that changing location is a change in state, then moving ma- terials is value-added but with the potential of significant increases in efficien-
cy (as with setups, the goal is to minimize the amount of activity performance) Possible root causes include plant layout, manufacturing processes, and ven- dor arrangements Moving from a departmental to a cellular structure, adopting computer-aided manufacturing, and entering into contracts with suppliers that require just-in-time delivery to the point of production are examples of how knowledge of root causes can be exploited to reduce and eliminate nonvalue- added activities
Inspecting parts: Inspection is a nonvalue-added activity It is a detection activity and is not necessary to enable other activities to be per- formed This activity should be reduced and eventually eliminated A possible root cause of inspection is the possibility of poor quality of parts and mate- rials The company should work with suppliers to ensure high quality (zero- defect parts)
Setting up equipment: Using the number of setups as a driver may cause a buildup of inventories Since reducing the number of setups will reduce setup costs, there will be an incentive to have fewer setups Reducing the number
of setups will result in larger lots and could create finished goods inventory This is in opposition to the goal of zero inventories On the other hand, if se- tup time is used as the driver, managers will have an incentive to reduce se- tup time Reducing setup time allows managers to produce on demand rather than for inventory
Trang 165–14 Concluded
Creating scrap: Using the number of defective units as a driver should courage managers to reduce defective units Assuming that defective units are the source of scrap, this should reduce scrap costs Similarly, using pounds of scrap should encourage managers to find ways to reduce scrap In both cases, the behavioral consequences could be two-edged If the reduc- tion of scrap (defective units) is achieved by increasing quality/productive ef- ficiency, the effect is compatible with the objective of creating a competitive advantage If the reduction is achieved by allowing defective units to flow through to finished goods, then the effect will be to alienate customers, not win their favor (customer realization decreases) Neither driver appears to dominate One solution is to report the trend in warranty activity with the trend in scrap activity This may discourage any kind of pass-on behavior
Welding subassemblies: Using welding hours should encourage management
to find ways of reducing the welding hours required per product This would
be more likely to induce managers to look at possible root causes such as product design and process design rather than number of welded subassem- blies There is some value in looking for ways to reduce the number of welded subassemblies, perhaps redesigning the product to eliminate welding
Materials handling: Both drivers seem to have positive incentives Seeking ways to reduce the number of moves or distance moved should lead manag- ers to look at root causes Reorganizing the plant layout, for example, should reduce either the number of moves or the distance moved Hopefully, the ac- tivity drivers will lead to the identification of executional drivers that can be managed so that the activity can be reduced and eventually eliminated
Inspecting parts: Hours of inspection can be reduced by working with
suppli-ers so that greater incoming quality is ensured Similarly, the number of fective parts can be reduced by working with suppliers so that incoming qual- ity is increased Hours of inspection, however, can be reduced without increasing quality This is not true for the number of defective parts Using the number of defective parts appears to be a better choice
Trang 17de-1 First quarter: Setup time standard = 10 hours (based on the planned provement: 15 hours – 5 hours)
Second quarter: Setup time standard = 8 hours (based on the planned provement: 9 hours – 1 hour)
• Plan (five-hour reduction from process redesign)
• Do (try out setup with new design)
• Check (time required was nine hours, a six-hour reduction)
• Act (lock in six-hour improvement by setting new standard of nine hours
and using same procedures as used to give the nine-hour outcome; and, simultaneously, search for new improvement opportunity; in this case, the suggested changes of the production workers.)
Repeat kaizen subcycle:
• Plan (one-hour reduction from setup procedure changes)
• Do (train and then implement procedures)
• Check (actual time required was 6.5 hours, a 2.5-hour reduction)
• Act (lock in improvement by setting standard of 6.5 hours and begin search
for new improvement)
First quarter (end of):
• Establish standard (nine hours based on improved process design)
• Do (implement repetitively the improved standard)
• Check (see if the nine-hour time is maintained)
• Act (if the nine-hour time deteriorates, find out why and take corrective
ac-tion to restore to seven hours.)
Second quarter: Same cycle using 6.5 hours as the new standard to maintain
Note: The maintenance cycle described begins after observing the actual
im-provement The actual improvement is locked in The maintenance standard
at the beginning of the first quarter is 15 hours
Trang 185–15 Concluded
5 Standard costing basically uses only a maintenance subcycle Standards are set and maintained The principal difference is the emphasis on constantly searching for improvements with the standard changing with each improve- ment This search involves all employees (e.g., engineers and production
workers) Thus, kaizen costing is dynamic, whereas traditional
(functional-based) standard costing is static
5–16
200,000 is the average order size times the number of orders
Ordering rate = $1,760,000/440= $4,000 per sales order
Selling rate = $640,000/80 = $8,000 per sales call
Service rate = $600,000/300 = $2,000 per service call