The Market for Lemons car. This, in turn, motivates the owners of moderately good cars not to sell, and so on. The result is that a market in which there is asymmetric information with respect to quality shows characteristics similar to those described by Gresham's Law: the bad drives out the good. (Although Gresham's principle applies more specifically to exchange rates, modified analogies can be drawn.) Akerlof considers a situation in which demand "D" for used cars depends on the cars price "p" and quality "µ" = "µ"("p") and the supply depends on price alone. Economic equilibrium is given by "S"("p") = "D"("p","µ") and
Good cop/bad cop and in general showing sympathy for the subject. The good cop will also defend the subject from the bad cop. The subject may feel they can cooperate with the good cop either out of trust or out of fear of the bad cop. They may then seek protection by and trust the good cop and provide the information the interrogators are seeking. This technique also has its disadvantages in that it can be easily identified and the "bad cop" may alienate the subject. Good cop/bad cop "Good cop/bad cop" routine, also called joint questioning or friend and foe, is a