Question
The equilibrium condition for three related markets is given by: 11 P 1 P 2 P 3 31 P 1 6 P 2 2 P
The equilibrium condition for three related markets is given by:
11 P 1 P 2 P 3 31
P 1 6 P 2 2 P 3 26
P 1 2 P 2 7 P 3 24
Using matrix inverse method, find the equilibrium price for each market.
(b) Assume that two products, Gleem and Sparkle, currently share the market with shares of 60% and
40% each respectively. Each week some brand switching takes place. Of those who bought
Gleem the previous week, 70% buy it again, whilst 30% switch to Sparkle. Of those who bought
Sparkle the previous week, 80% buy it again, whilst 20% switch to Gleem.
Determine the position:
(i)One week from now
(ii)Two weeks from now
(iii)In the long run
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