在20世紀80年代後期, 資訊管理系統的廣泛應用, 使得實業界普遍感到產品成本處處與現實脫節, 成本扭曲普遍存在, 且扭曲程度令人吃驚。
Much modern manufacturing relies on highly automated,expensive manufacturing plants–so much so that some companies do not separately identify the cost of labour because there is so little used.Instead,factory labour is simply regarded as a fixed overhead and added in to the fixed costs of running the factory,its machinery,and the sophisticated information technology system which coordinates production.
具體表現為現代製造企業大多採用了高度自動化機械設備, 以至於人工成本在產品成本中的比重越來越小, 甚至有些企業已經把人工成本歸類為固定製造費用, 作為期間費用的一部分進行成本核算, 這與傳統的料工費歸集方法有了很大不同。
Many companies rely on customisation of products to differentiate themselves and to enable higher margins to be made.Dell,for example,a PC manufacturer,has a website which lets customers specify their own PC in terms of memory size,capacity,processor speed etc.That information is then fed into their automated production system and the specified computer is built,more or less automatically.
另外, 在市場競爭日益激烈化的背景下, 產品差異化策略被許多企業採用, 希望以此作為突破點來搶佔更多的市場份額,
Instead of offering customers the ability to specify products,many companies offer an extensive range of products,hoping that one member of the range will match the requirements of a particular market segment.
除了給顧客私人定制的便利, 許多企業還會提供多功能、多種類的產品, 以適應不同顧客的需要, 產品市場百花齊放。
機械化的高度發展, IT技術的使用, 以及由此產生出的設備維護成本、研發成本、市場調研成本, 而所有這些因素都是傳統成本法考慮不到的, 一場對傳統技術的改進迫在眉睫。
These developments in manufacturing and marketing mean that the conventional way of treating fixed overheads might not be good enough.Companies need to know the causes of overheads,and need to realise that many of their‘fixed costs’might not be fixed at all.They need to try to assign costs to products or services on the basis of the resources they consume.
現代企業需要知道製造費用的起因, 需要認識到哪些費用是固定的, 哪些費用其實是可以避免的, 需要對各種產品進行盈利分析,
美國哈佛大學的青年學者庫伯(Robin Cooper)和教授卡普蘭(Robert S Kaplan)在對美國公司調查研究之後,
The ABC process is as follows:
1.Split fixed overheads into activities.These are called cost pools.
2.For each cost pool identify what causes that cost.In ABC terminology,this is the‘cost driver’,but it might be better to think of it as the‘cost causer’.
3.Calculate a cost per unit of cost driver(Cost pool/total number of cost driver).
4.Allocate costs to the product based on how much the product uses of the cost driver.
首先, ABC成本法要識別不同活動的成本, 並把他們分到不同的活動成本庫(Activity cost pool), 活動成本庫可以根據企業實際經營所發生的各種活動, 靈活加以確定。 它們可能包括設置調試機器、訂貨、材料處理、儲存、發運、生產過程監管、供電等。 對成本驅動因素(cost driver)的分析有助於確定把製造費用分配到各個產品或產品系列上的適當比率。
第二步是運用這些比率把成本庫中的製造費用分攤到各個產品中。 分攤成本要基於生產這個產品需要消耗的成本活動量。
The traditional approach to fixed overhead absorption has the merit of being simple to calculate and apply.However,simplicity does not justify the production and use of information that might be wrong or misleading.
傳統成本方法對固定製造費用的歸集比較簡單粗暴,
ABC undoubtedly requires an organisation to spend time and effort investigating more fully what causes it to incur costs,and then to use that detailed information for costing purposes.But understanding the drivers of costs must be an essential part of good performance management.
ABC costing無疑需要企業付出更多的時間、金錢和精力, 以獲得更精確可靠的資訊, 來用這些資訊進行管理決策。 但是對所發生的的成本的透徹理解也是一個好的績效管理所必需的。
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