What people are most interested in Hansen is that he has a special talent to connect Keynes's works with the actual situation in the United States. By the standards of the time, he was an orthodox economist of 1930. His book about the economic cycle from 65438 to 0927 is generally regarded as the standard reference book in this field. He co-wrote a textbook from 65438 to 0928, so he was very proficient in British neoclassical economists and Swedish economists, such as Knetter Wickmore. He was very interested in the economic cycle, so he studied john maynard keynes's works carefully before The General Theory came out.

Hansen's graduation thesis at the University of Wisconsin is part of his growth. He was deeply impressed by several unique American economists, especially John R.Commons. At that time, neoclassical theories and policies were in their heyday, and Kang Mangsi began to defend the expansion of government functions.

His views on the economic system, especially on the plight of the working people, made him oppose those views that the free market can lead to the optimal solution by itself. Kang Mangsi's philosophy tends to be the cooperation between the government and the market. He believes that the government cannot interfere in the economy; His aim is to help the market operate in more and wider areas.

Today, this view is extremely traditional; But this view was not popular in the first 30 years of this century. Hansen accepted Kang Mangsi's judgment at the beginning of his career. Therefore, he is more receptive to expanding government functions than his contemporaries. When Hansen was still studying at the University of Wisconsin, his favorite topic was the economic cycle, and his views on this issue were deeply influenced by the works of Wesley Claire Michel, a student of Van Buren. Michelle's research method on business cycle was inspired by Van Buren's suspicion of orthodox economic theory. Michelle has collected a lot of data, which he thinks is enough to explain the potential causes of fluctuations without any detailed "theory". Hansen does not accept Michelle's aversion to theory; He combined Michelle's emphasis on the necessity of empirical analysis with his support for the theoretical framework. Throughout his career, he has always doubted the business cycle model, just as his Harvard colleague E.H. Chamberlain doubted the perfect competition model. Are inconsistent with reality. There is another ironic event about Hansen's position in the history of economic thought: he is very disgusted with the macroeconomic mathematical analysis model that prevailed after World War II. "Hansen's originality is often overlooked," paul samuelson said. "Because of 1935, economics has entered the era of mathematics. It may be easier to get a camel through the eye of a needle than to get a non-mathematical genius into the hall of creative theorists. "

In today's highly specialized academic market, we attribute Hansen of 1930 to an institutional economist who is very interested in the economic cycle and good at quantitative analysis. At the end of the Great Depression, we added a prefix "Keynesian School". Hansen's unique unorthodox background in the United States has aroused great interest from historians in his transition to new economics. Fortunately, he provided us with a complete record of his thoughts from the stock market crash to the outbreak of World War II. From these descriptions, we can see that his suspicion of new economics has gradually declined and turned into enthusiastic support.