康奈尔大学经济学教授阿尔弗雷德·卡恩(Alfred E.Kahn)——或许因作为吉米·卡特的“通货膨胀斗士”而著称——在评论一册关于美国经济问题的新书时,1最为简练而清楚地表述了为正统经济学视作理所当然,却未曾表达的一个重要原则。他写道:与流行假定相反的是,围绕证券、房地产以及商品的投机,以及现有公司的并购,并不会浪费掉可用于生产性投资的资本。他们所做的一切只不过是将美元 Alfred E. Kahn, a professor of economics at Cornell University - perhaps credited with being Jimmy Carter’s “Inflation Fighter” - was commenting on a new book on U.S. economic problems 1, the most concise and clear expression of an important principle that orthodox economics takes for granted but has not expressed. He wrote: Contrary to popular belief, speculation around securities, real estate and commodities, and mergers and acquisitions of existing companies, do not waste capital available for productive investment. Everything they do is just dollars