美国：经济结构调整推动老工业区“锈带复兴”20世纪90年代，被称为“锈带”的美国中西部老工业区在经历了长期的经济衰败后迅速重新崛起。“锈带复兴”成为90年代以来美国经济界研究和推崇的一种经济现象。所谓“锈带”，实际上并没有具体的地理位置。通常是指美国中西部的几个州。底特律、匹兹堡、克利夫兰和芝加哥等大工业城市均在这一地区。20世纪中前期，“锈带”既有过制造业兴旺发达 U.S.: Adjustment of economic structure promotes “rejuvenation of rust belts” in old industrial areas In the 1990s, the old industrial areas in the central and western United States, known as “rust belts”, quickly re-emerged after a long period of economic decline. “Rejuvenation of rust belts” has become an economic phenomenon studied and promoted by the U.S. economic community since the 1990s. The so-called “rust belt” does not actually have a specific geographical location. Usually refers to several states in the Midwestern United States. Large industrial cities such as Detroit, Pittsburgh, Cleveland and Chicago are all located in this area. In the first half of the 20th century, the “rust belt” had both a prosperous development of the manufacturing industry.