Consider a first-price sealed-bid auction of a single object with two bidders į = 1, 2. Bidder 1's valuation is v1 = 2, and bidder 2's valuation is v2 = 5. Both v1 and v2 are known to both bidders. Bids must be in whole dollar amounts (e.g. $1). In the event of a tie, the object is awarded by a flip of a fair coin. (a) Write down this auction as a 2 x 2 matrix game. Hint: note that each bidder can choose a bid from {0, 1, 2, 3, 4, 5, ...}. Your matrix will be incomplete since you cannot write a matrix with infinite rows and columns (b) Eliminate the strictly dominated strategies. Write down the resulting matrix game. (c) An auction is efficient if the good is allocated to the bidder with the highest valuation of the good. What are the Nash equilibria of this game? Are the Nash equilibria efficient?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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Consider a first-price sealed-bid auction of a
single object with two bidders j = 1, 2. Bidder
1's valuation is v1 = 2, and bidder 2' s
valuation is v2 = 5. Both v1 and v2 are known
to both bidders. Bids must be in whole dollar
amounts (e.g. $1). In the event of a tie, the
object is awarded by a flip of a fair coin.
(a) Write down this auction as a 2 x 2 matrix
game. Hint: note that each bidder can choose
a bid from {0, 1, 2, 3, 4, 5, ...}. Your matrix will
be incomplete since you cannot write a
matrix with infinite rows and columns
(b) Eliminate the strictly dominated
strategies. Write down the resulting matrix
game.
(c) An auction is efficient if the good is
allocated to the bidder with the highest
valuation of the good. What are the Nash
equilibria of this game? Are the Nash
equilibria efficient?
Transcribed Image Text:Consider a first-price sealed-bid auction of a single object with two bidders j = 1, 2. Bidder 1's valuation is v1 = 2, and bidder 2' s valuation is v2 = 5. Both v1 and v2 are known to both bidders. Bids must be in whole dollar amounts (e.g. $1). In the event of a tie, the object is awarded by a flip of a fair coin. (a) Write down this auction as a 2 x 2 matrix game. Hint: note that each bidder can choose a bid from {0, 1, 2, 3, 4, 5, ...}. Your matrix will be incomplete since you cannot write a matrix with infinite rows and columns (b) Eliminate the strictly dominated strategies. Write down the resulting matrix game. (c) An auction is efficient if the good is allocated to the bidder with the highest valuation of the good. What are the Nash equilibria of this game? Are the Nash equilibria efficient?
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