Economics in the joke: In fact, economists have done nothing.

Economic theory, law of value, price balance, commodity concept, etc. Can not exist alone without life, as well as all the gap between the rich and the poor, the interests of buying and selling, the profit and loss of money and so on. Also around people's "vulgar" life. & gt& gt The economist who entered the financial hall did nothing —— Laughing at "What did the economist do?" Answer: "What did the economist do?" B: "In the short term, they have done a lot, but in the long term, they have done nothing." Interesting comment: Productivity determines production relations, and production relations react on productivity, which is the general law of social development. Economists cannot change this rule. Economics in jokes: whether it is primitive society, slave society, feudal society, capitalist society or socialist society, economic development generally follows this law. Economists are a historical phenomenon, and their role in economic development is an external role, which must be carried out on the basis of following the internal laws of economic development. Taking commodity economy as an example, any action of economists must be based on respecting the laws of value, supply and competition. In fact, after deeply understanding and mastering the internal operation law of market economy, economists give some suggestions on the phenomenon of violating market economy or market failure in the real economy, trying to bring economic development back to the market track. Therefore, the economist's action is an adaptive and flexible external adjustment, which cannot fundamentally change the general trend of economic operation. An economist returned to his alma mater and was very interested in the current examination questions. So he asked the teacher who had taught him to take out the examination questions. To his great surprise, the exam questions now are exactly the same as those he answered ten years ago. He asked the teacher why this happened. The teacher replied, "Although the question hasn't changed, the answer has changed." Interesting comment: economics is only an expedient explanation of the behavior of eternal people. Economics in the joke: In 2000, the Nobel Prize in Economics was awarded, and all the candidates who were originally considered hot passed by the Nobel Prize. Representatives of experimental economics and psychoeconomics won this honor, which surprised economists. Many people think that experimental economics and psychological economics are the unpopular and partial doors of economics, which have little to do with mainstream economics and are farther away from real economic problems. However, Professor Zhang Wuchang believes that if experimental economics looks novel, then psychological economics is the mainstream or orthodoxy of economics. Almost all laws or theorems in economics can be attributed to human psychological laws. Psychology is not only the closest discipline to economics, but also the basic driving force for the development of modern economics. For example, before Adam Smith wrote The Wealth of Nations, he wrote The Theory of Moral Sentiments, focusing on the influence of people's psychological feelings and psychological processes on real economic behavior and economic order, and drawing a theory similar to Confucianism that selfless love alone cannot maintain the effective operation of economic relations and economic systems beyond the scope of family or relatives. Coase, as the most in-depth scholar of the wealth of nations, spoke highly of the theory of moral sentiment, and thought that to understand the wealth of nations, we must first understand the theory of moral sentiment. The fundamental basis of the Austrian school's value theory and interest rate theory (represented by Pombavik) is people's subjective feelings and psychological processes. Keynes's general theory, which explains the Great Depression, assumes many psychological laws (such as marginal consumption trend and marginal savings trend). ). The dominant expectation theory in contemporary macroeconomics is also related to people's psychological process. In fact, it is not surprising that the constant theme of economics is to explain people's behavior. Man is the soul of all things, and "thought precedes action". To explain human behavior, we must understand human psychological process. But people's psychological feelings are changeable and unfathomable. How hard it is to explain! The only way is to simplify. Firstly, some basic assumptions are made on the basis of human behavior, from which some conclusions that may be verified by observation or experiment are deduced, and then these conclusions are tested with real data or experimental data, so as to continuously improve the theory or put forward new assumptions. This is the development process of economic science. Different scholars may adopt different assumptions and draw different conclusions, or different scholars can only explain one aspect of human behavior. This is what Knight said. "Although the questions are the same, the answers are different." Some people compare the current situation of economics to "the blind touch the elephant", in fact, all researchers have the same knowledge.