Continue to assume that we are dealing with auctions held in the same environment as in the question above. Someone proposes a slightly dierent auction format though. In this auction, bidders will all submit their bids in sealed envelopes to the auction administrator. The winner will be the bidder who submitted the highest bid. The twist to this auction format is that everyone pays an amount equal to what they bid, not just the winner. Should this auction format be expected to yield more, less or the same revenue as a second price auction assuming risk neutral expected utility maximizing bidders? Prove that your answer is correct