jayantbakshi SonalSinha803 The trick with E is not just that it says "most." It has to do with whether advertising really does affect prices. We know for a fact that retailers charge less for things that they put in fliers than other (non-advertising) retailers charge for those items. But do they actually REDUCE their prices, or do they perhaps put out the fliers to advertise their already-low prices? In other words, do fliers cause low prices, or do low prices cause fliers? This kind
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