Reference no: EM131332894
Consider a sealed-bid second-price auction with two buyers, whose private values are independent; buyer 1's private value is uniformly distributed over [0, 1], and buyer 2's private value is uniformly distributed over [0, 2].
(a) For each buyer, find all weakly dominant strategies.
(b) Consider the equilibrium in which every buyer bids his private value. What is the probability that buyer 1 wins the auction, under this equilibrium? What is the seller's expected revenue in this case?
(c) Prove that at any equilibrium β = (β1, β2) satisfying β1(v) = β2(v) for all v ∈ [0, 1], one has β1(v) = β2(v) = v for all v ∈ [0, 1].
(d) Are there equilibria at which a buyer, whose private value vi is less than 1, does not submit the bid βi(vi) = vi?
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