Algorand: A Better Distributed Ledger

Hi, I have a question for tomorrow. I hope this is the right place for asking them.
I hope Silvio address it during his talk, otherwise here it goes:

How sensitive is Algorand to spontaneous coordination? How sensitive it is to manipulations that relies on spontaneous coordination?
For example, in retail selling, small players when see there is an event in their city can increase their prices in sync, without communicating, because they believe that others small players will do so. With the right stimulus, a power player could induce a critical mass of players going into one direction, like using suggesting them the event is going to be big. Negative results in computational social choice suggest cost in money or time as barriers against such manipulations.