University during the period, in order to pay for Pottery scars, I was a part-time investment when investigators. At that time, the beginning of the Cold War, the Pentagon create a large number of fighters, bombers and other military aircraft. Investors want to prepare plans to forecast the impact of the Traditional culture we, so they are anxious to know the Government's demand for raw materials, especially aluminum, copper and steel demand. However, the data is not easy to obtain. In 1950, a Korean War broke out, all the Pentagon had planned to buy military supplies as a confidential document. I used to have a better understanding of the metals market, so volunteered to go when the "detective", the boss agreed. First of all, I find the 1950 congressional hearings on the record of the meeting (this information is open to the public), but the military because the meeting is held confidential, I can not see their records. How do? I am thinking of the 1949 record of the That is the best fit. At that time the Korean War has not yet begun in the normal military meeting held during the hearing, the record is very detailed, and the announcement that the Government through research and news reports over the past year, I know that in 1950 and 1949 the size of the U.S. Air Force and are basically the same equipment. So I learned from the 1949 record of each camp to find out how many planes, each of the air force wing of the number of business, the new fighter model, the number of back-up fighter and is expected to amount of wear and tear. With these data, I basically can be calculated for each type of demand for a fighter. Then I have to find each type of aircraft required for People in town to eat, copper and steel. I found a variety of aircraft manufacturing technology and engineering manuals, into the a number of charts and marine engineering terms. Gradually, the messy data showing the law, the Government's plan to buy become clearer. After the investigation, I wrote two long reports have been published in the "Records of the economy", entitled "The Economics of the Air Force." For the first time in more than 30 years, I was soon after the U.S. Federal Reserve Chairman, has been a work in the Pentagon colleagues said: "You will recall that wrote the" economics of the Ant's Love "? You calculated the number of classified documents with the Government's figures are very Close to the time the scared we Yida Tiao, it is necessary to send almost secret police to track you! " If you ask what is the secret of success? I will give you two answers: "shortcut" and "hard work." For example, the "economics of the Air Force," the survey, the 1949 record of the meeting is a "short cut" in the vast data in the calculation sorted out the various models of the plane's data is "hard work", the two are indispensable.