Gresham's law is a work that examines this problem in more detail. Some also use an explanation of Gresham's Law as "The more efficient you become, the less effective you get"; i.e. "when you try to go on the cheap, you will stop selling" or "the less you invest in your non-tangible services, the fewer sales you will get." Vice President Spiro Agnew used Gresham's law in describing American news media, stating that "Bad news drives out good news," although his argument was closer to that of a race to the bottom for higher ratings rather than over and undervaluing certain kinds
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