这正是高盛(Goldman Sachs)经济学家艾尔西・彭研究的切入点,在月初为该行所发的研报中,她详细剖析了计算机革命发生后的生产效率增长规律。她在报告中写到,上次出现如此量级的技术革命时,经济曾经历漫长的阵痛期,前四年生产效率显著走弱,之后四年原地持平,第八年才出现具备统计意义的效率增长。而大众熟知的生产效率大提升,直到个人电脑商业化整整十五年后才真正体现在宏观数据中。
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