5. (a) The purchase patterns of two brands of toothpaste can be expressed as a Markov process...

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5.

(a) The purchase patterns of two brands of toothpaste can be expressed as a Markov process with the following probabilities:

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(i) Which brand appears to have most loyal customers? Explain.
(ii) What are the projected market shares for the two brands?

(b) Suppose that in part

(a) a new toothpaste brand enters the market such that the following transition probabilities exist:

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What are the new long run market shares? Which brand will suffer from the introduction of the new brand of toothpaste?

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