If everyone is rational (ie., won't purposely screw themselves.) and does not change their maximum amount according to what other bidders do, then it kind of do

If everyone is rational (ie., won't purposely screw themselves.) and does not change their maximum amount according to what other bidders do, then it kind of doesn't matter in the end. [1] https://en.wikipedia.org/wiki/Revenue_equivalence https://en.wikipedia.org/wiki/Revenue_equivalence