Recently I've read an answer on Quora about why some shop say that they have guaranteed lowest prices. It turns out that the price is probably higher than the actual price, and that's a sign that other shops should follow them, set the same "high price", otherwise, that shop will lower the price and no one win. It's a good read, unfortunately, I can't find the link now.<p>Any suggestion for a good comprehensive book on game theory in economics?