美元、美媒和美军,正是今天美国主导世界的“前、中、后”三军,是美国秘而不宣奉行的经济理论。田大瑜博士新著的《美国经济的信用卡效应》一书完稿后,特地请我看一看,并望我为此书作序。他博士毕业后,在繁忙的工作中,仍然坚持研究广义虚拟经济,这种孜孜不倦做学问的精神,是我非常欣赏的。如今,这本书即将出版问世,作为他的导师,其开心程度不亚于他本人。他的这本书所研究的问题,也是他攻读博士时 The U.S. dollar, the U.S. media and the U.S. military are today’s three armed forces that “dominate the world,” and “the former, the middle and the late.” They are the unspeakable economic theories of the United States. After Dr. Tian’s new book, Credit Card Effects in the U.S. Economy, was finalized, I asked for a look at me and asked me to preface this book. After graduating from his Ph.D. in the busy work, I still insist on studying the generalized fictitious economy. This kind of tireless learning spirit is what I really appreciate. Today, the book is forthcoming publication, as his mentor, as happy as he himself. The problem he studied in this book is also when he was studying for a Ph.D.