管进入新世纪美国经济增长会放慢，但到2001年3月，美国经济增长将持续整整10年。今后的经济扩张还将持续多久？多种信息表明，21世纪初美国经济走势，主要取决于如下四大问题的走向：美国经济运行会不会出现“硬着陆”；股市是否转入熊市；新政府的宏观经济政策是否出现转折性 As the United States enters a new century, its economic growth will slow down. However, by March 2001, U.S. economic growth will lag behind for 10 years. The future economic expansion will continue for how long? Various kinds of information show that the trend of the U.S. economy in the early 21st century mainly depends on the following four major issues: Whether the “hard landing” will occur in the economic operation of the United States; whether the stock market turns into a bear market; whether the macroeconomic policy of the new government turns into a turning point