今年上半年,美国的Nasdaq市场大幅震荡,作为新经济代表的网络科技股经过两年的繁荣后风光不再,而作为旧经济代表的蓝筹股和金融股却在沉寂两年后重新成为投资者青睐的对象。早先异军突起的那部分网络科技企业缺乏产业支撑和盈利来源的弱点,在企业迅速发展的过程中逐渐暴露出来;而随着科技手段的广 In the first half of this year, the Nasdaq market in the United States experienced a sharp turmoil. As a new economy, network technology stocks are no longer visible after two years of prosperity. Blue chips and financial stocks, as the representatives of the old economy, have re-emerged as investors' favor after two years of silence Object. The earlier part of the sudden emergence of network technology companies lack of industry support and profit sources of weaknesses in the rapid development of enterprises gradually exposed; and with the wide range of scientific and technological means