(c) Discuss TWO limitations of the Boston Consulting Group matrix as a strategic planning tool. (4 marks)

正确答案：
(c) There are numerous criticisms that have been made regarding the BCG growth share matrix. Two such criticisms are as
follows:
– It is a model and the weakness of any model is inherent in its assumptions. For example many strategists are of the
opinion that the axes of the model are much too simplistic. The model implies that competitive strength is indicated by
relative market share. However other factors such as strength of brands, perceived product/service quality and costs
structures also contribute to competitive strength.
Likewise the model implies that the attractiveness of the marketplace is indicated by the growth rate of the market. This
is not necessarily the case as organisations that lack the necessary capital resources may find low-growth markets an
attractive proposition especially as they tend to have a lower risk profile than high-growth markets.
– There are problems with defining the market. The model requires management to define the marketplace within which
a business is trading in order that its rate of growth and relative market share can be calculated. This can prove
problematic in comparing competitors since if they supply different products and services then the absence of a
consistent basis for comparison impairs the usefulness of the model.
Other valid criticisms include the following:
The application of the BCG matrix may prove costly and time-consuming since it necessitates the collection of a large
amount of data. The use of the model may also lead to unfortunate consequences, such as:
– Moving into areas where there is little experience
– Over-milking of cash cows
– Abandonment of potentially healthy businesses labelled as problem children
– Neglect of interrelationships among businesses, and
– Too many problem children within the business portfolio largely as a consequence of incorrect focus of
management attention.