They could raise prices by upping the minimum bid. For example for the keyword “foo” google sets the minimum bid at $1. I set my max bid at $5. There’s only 5

They could raise prices by upping the minimum bid. For example for the keyword “foo” google sets the minimum bid at $1. I set my max bid at $5. There’s only 5 bidders so we all pay $1. Google ups the minimum to $2 and it’s under our max bid so now we all pay double. That’s how.