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There’s two common kinds of auction those with multiple rounds where the final bid wins and those where everyone puts in the maximum amount upfront and the winner pays whatever #2 bid. The second type is much faster but incentivizes the auction house to lie about the #2 bid.

Google did the second type and then got caught lying about bids. Doing so is really tempting but also generally fraud.



Winner pays what #2 bid + a penny more correct? (Similar to eBay, when done correctly)

It's unclear why a penny is considered the legal adder, why not 15% more? If this is all disclosed in Google's terms of service, is it really fraud?


No, precisely as they said: winner pays the second place bid.

E2a: https://en.m.wikipedia.org/wiki/Generalized_second-price_auc...

Edit again - I stand corrected, while it is true that the standard implementation is as I said, seems from TFA Google’s implementation is second-place+0.01.


They disclose its second place + 0.01, but the article says they lied and raised it by 15%.

“Google’s advertising auctions require the winner to pay only a penny more than the runner-up. In 2016, the company discovered that the runner-up had often bid only 80% of the winner’s offer. To help eliminate that 20% between the runner-up and what the winner was willing to pay, Google gave the second-place bidder a built-in handicap to make their offer more competitive, Whinston said, citing internal emails and sealed testimony by Google finance executive Jerry Dischler earlier in the case.”


“Google gave the second-place bidder a built-in handicap to make their offer more competitive” is the tamest way of phrasing it, given that the “handicap”’s only effect is to cost the first-place bidder more money.

It never helps the second-place bidder. I’d argue “handicap” is deceitful.


But according to the article it was not disclosed (??)

> Google’s advertising auctions require the winner to pay only a penny more than the runner-up.

> “Google has not been transparent about what they are doing” with pricing, Whinston said.


In adtech a first price auction is also a single round.




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