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Consider a market with network externalities, where demand is Q-100 - 1P. Let price initially be $40, where current demand wi
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Answer #1

Answer : Without externalities :

When P = $40,

Q1 = 80 - (0.50 * 40) = 60

When P = $30,

Q2 = 85 - (0.50 * 30) = 70

Changes in quantity demanded without externality = Q2 - Q1 = 70 - 60 = 10.

Therefore, due to price change without externality the quantity demanded is increased by 10 units.

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