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有则笑话:老板招聘员工,数学家、统计学家、经济学家来应聘。老板问:“1加1等于几?”“2。”数学家回答的不假思索。统计学家严谨答道:“大部分情况下等于2。”经济学家跟老板耳语:“老板,你想让1加1等于几?我就让他等于几。”数学高度抽象,抛开所有约束条件,1加1只在运算上等于2,没有单位、指向和误差,没有确切现实意义,就像张三有个苹果,李四也有一个,加起来就是两个苹果。经济学是一切以假设出发,假定一
There are jokes: the boss recruits staff, mathematicians, statisticians, economists to candidates. The boss asked: “1 plus 1 is equal to a few? ” “2. ” Mathematicians answered without hesitation. Statisticians rigorously replied: “In most cases, equal to 2. ” economist whispered with the boss: “boss, you want to make 1 plus 1 equal to a few? I will let him be equal to a few.” Mathematical abstraction , Put aside all the constraints, 1 plus 1 in the operation is equal to 2, there is no unit, point and error, there is no exact relevance, just like Joe Smith has an apple, Lee also has a four, add up to two apples. Economics is everything to assume, assuming one