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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