3. Second Price Auction. In a second price auction with two bidders, we know fro
ID: 1238203 • Letter: 3
Question
3. Second Price Auction. In a second price auction with two bidders, we know from class that everyonebidding his valuation (b1 = v2 and b2 = v2) is the dominant strategy equilibrium.
(a) Show that for player 1, bidding b0
1 < v1 is weakly dominated by bidding b1 = v1.
(b) In classe, we showed that any player 10s strategy b0
1 > v1 is weakly dominated by strategy b1 = v1.
Combine the above two statements, what conclusion can you draw? Why this conclusion is relevant
if we want to show (b1 = v2; b2 = v2) is the dominant strategy equilibrium?