Someone asks economists: "kid in the class row to 20. We want him forward several study. He is actually pretty hard, seldom watch TV, but the effect is not obvious. We are a headache, whether or not to give he set up the goal, or with his own play well?"Economists say a joke: economists and physicists walking in the woods, suddenly came across a big black bear, economists see a form, MianWuRenSe, turned tail and ran, physicists say: "you don't run, we run but the bear's!" And economists side, the side of run turn head to say: "although I run but the black bear, but I run faster than you!"With class test scores, take an examination of the terms to the top is expected returns.
To achieve such a expected returns, and it takes the same amount of mental and energy. Assuming that the cost for 100, but his past performance is 20, explain only pay 50 costs, so that the results of the examination is not reasonable before five. If not the top five as a target, it becomes impossible task.Running, just a lap over in front of a people, to the last lap can run into the first camp.
Examination of the truth in the existing, so nothing more than 50, based on the cost of investment, you can often produce several benefits, in advance so that he will get the incentive. People usually respond to incentives in ascension, one step, and on the basis of the cost of investment, 50 again and improved somewhat income, so cycle, not only harvest grades, but the harvest confidence. Frequently, in addition to three goals before called show mercy of parents, notaccord with the scientific concept of development.Back to the top flight, whether or not, joke or work all right, than is not absolute advantage, but the relative superiority. Eighteen to martial arts to master everything, pure be find smoke. Most people make a living, all you need is a different skills, and the rest should try education teaching skill, not out.
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