3. Consider the Hotelling problem we discussed in class. Assume consumers are uniformly distributed on the [0, 1] interval, that Firm 1 is at 0, and Firm 2 is at 1. A consumer at x is distance from Firm 1 and distance 1-2 from Firm 2. Consumers purchase from the firm which has lower costs td+p where dis the distance and p is the price and t is a travel cost. (a) Define the indifferent consumer and write out the profit function for each firm. Using the first order conditions, show that the Nash equilibrium prices are p₁ P2=c+t. (b) Suppose instead that Firm 1 is located at y which is close to 0. Find the Nash equilibrium for any y and show that Firm 1 is better off choosing = ย 0 and show that the direct effect of choosing y > 0 is positive (the direct effect is a derivative evaluated at y = 0 and is calculated holding P2 fixed). This is harder because the prices are not symmetric.

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3. Consider the Hotelling problem we discussed in class. Assume consumers are
uniformly distributed on the [0, 1] interval, that Firm 1 is at 0, and Firm 2 is
at 1. A consumer at r is distance r from Firm 1 and distance 1-r from Firm
2. Consumers purchase from the firm which has lower costs td + p where d is
the distance and p is the price and t is a travel cost.
(a) Define the indifferent consumer and write out the profit function for each
firm. Using the first order conditions, show that the Nash equilibrium
prices are pi = P2 c+t.
(b) Suppose instead that Firm 1 is located at y which is close to 0. Find the
Nash equilibrium for any y and show that Firm 1 is better off choosing
y = 0 and show that the direct effect of choosing y > 0 is positive (the
direct effect is a derivative evaluated at y = 0 and is calculated holding
P2 fixed). This is harder because the prices are not symmetric.
Transcribed Image Text:3. Consider the Hotelling problem we discussed in class. Assume consumers are uniformly distributed on the [0, 1] interval, that Firm 1 is at 0, and Firm 2 is at 1. A consumer at r is distance r from Firm 1 and distance 1-r from Firm 2. Consumers purchase from the firm which has lower costs td + p where d is the distance and p is the price and t is a travel cost. (a) Define the indifferent consumer and write out the profit function for each firm. Using the first order conditions, show that the Nash equilibrium prices are pi = P2 c+t. (b) Suppose instead that Firm 1 is located at y which is close to 0. Find the Nash equilibrium for any y and show that Firm 1 is better off choosing y = 0 and show that the direct effect of choosing y > 0 is positive (the direct effect is a derivative evaluated at y = 0 and is calculated holding P2 fixed). This is harder because the prices are not symmetric.
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