【{"content":"Inhis1930essayu201cEconomicPossibilitiesforOurGrandchildrenu201cuff0cJohnKeynesuff0cafamouseconomistuff0cwrotethathumanneedsfallintotwoclassesuff1aabsoluteneedsuff0cwhichareindependentofwhatotherhaveuff0cand】

　　{"content":"

　　In his 1930essayu201cEconomic Possibilities for Our Grandchildrenu201cuff0cJohn Keynesuff0ca famous economistuff0cwrote that human needs fall into two classesuff1aabsolute needsuff0cwhich are independent of what other haveuff0cand relative needsuff0cwhich make us feel superior to our fellowsuff0eHe thought that although relative needs may indeed be insatiable uff08u65e0u6b62u5883u7684uff09 this is not true of absolute needsuff0e

　　Keynes was surely correct that only a small part of total spending is decided by the desire for superiorityuff0eHe was greatly mistakenuff0choweveruff0cin seeing this desire as the only source of insatiable demandsuff0e

　　Decisions to spend are also driven by ideas of quality which can influence the demands almost all goodsuff0cincluding even basic goods like fooduff0eWhen a couple goes out for an anniversary dinneruff0cfor exampleuff0cthe thought of feeling superior to others probably never comes to themuff0eThe goal is to share a special meal that stands out from other mealsuff0e

　　There are no obvious limits to theescalationof demand for qualityuff0eFor exampleuff0cPorsche famous car produceruff0chas a model which was considered perhaps the best sport car on the marketuff0ePriced at over $120uff0c000uff0cit handles perfectly well and has great speed accelerationuff0eBut in 2000the producer introduced some changes which made the model slightly better in handling accelerationuff0ePeople who really care about cars find these small improvements excitinguff0eTo themuff0choweveruff0cthey must pay almost four times the priceuff0e

　　By placing the desire to be superior to other at the heart of his description of insatiable demandsuff0cKeynes actually reduced such demandsuff0eHoweveruff0cthe desire for higher quality has natural limitsuff0e""questionList":{"1":{"type":1"title":"According to the passageuff0cJohn Keynes Believed that___uff0e""answer":"u7ec6u8282u7406u89e3u9898uff0eu6839u636eu