EXERCISE 75.1 (Electoral competition between candidates who care only about the winning position) Consider the variant of Hotelling's model in which the can- didates (like the citizens) care about the winner's position, and not at all about winning per se. There are two candidates. Each candidate has a favorite posi- tion; her dislike for other positions increases with their distance from her favorite position. Assume that the favorite position of one candidate is less than m and the favorite position of the other candidate is greater than m. Assume also that if the candidates tie when they take the positions x₁ and x2, then the outcome is the compromise policy (x₁+x2). Find the set of Nash equilibria of the strategic

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EXERCISE 75.1 (Electoral competition between candidates who care only about the
winning position) Consider the variant of Hotelling's model in which the can-
didates (like the citizens) care about the winner's position, and not at all about
winning per se. There are two candidates. Each candidate has a favorite posi-
tion; her dislike for other positions increases with their distance from her favorite
position. Assume that the favorite position of one candidate is less than m and
the favorite position of the other candidate is greater than m. Assume also that
if the candidates tie when they take the positions x₁ and x2, then the outcome is
the compromise policy (x1+x2). Find the set of Nash equilibria of the strategic
game that models this situation. (First consider pairs (x₁, x2) of positions for which
either x₁ < m and x₂ < m, or x₁ > m and x2 > m. Next consider pairs (x1, x2)
for which either x₁ <m < x2, or x2 < m < x₁, then those for which x₁ = m and
x2 m, or x₁ m and x2: = m. Finally consider the pair (m, m).)
The set of candidates in Hotelling's model is given. The next exercise asks
you to analyze a model in which the set of candidates is generated as part of an
equilibrium.
Transcribed Image Text:EXERCISE 75.1 (Electoral competition between candidates who care only about the winning position) Consider the variant of Hotelling's model in which the can- didates (like the citizens) care about the winner's position, and not at all about winning per se. There are two candidates. Each candidate has a favorite posi- tion; her dislike for other positions increases with their distance from her favorite position. Assume that the favorite position of one candidate is less than m and the favorite position of the other candidate is greater than m. Assume also that if the candidates tie when they take the positions x₁ and x2, then the outcome is the compromise policy (x1+x2). Find the set of Nash equilibria of the strategic game that models this situation. (First consider pairs (x₁, x2) of positions for which either x₁ < m and x₂ < m, or x₁ > m and x2 > m. Next consider pairs (x1, x2) for which either x₁ <m < x2, or x2 < m < x₁, then those for which x₁ = m and x2 m, or x₁ m and x2: = m. Finally consider the pair (m, m).) The set of candidates in Hotelling's model is given. The next exercise asks you to analyze a model in which the set of candidates is generated as part of an equilibrium.
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