根据经济学家卢卡斯·卡拉巴波尼斯（Loukas Karabarbounis）和布伦特·尼曼（Brent Neiman）的研究，这一下降有一半要归因于更加廉价的信息技术，信息技术的廉价化让企业得以用计算机取代工人。
According to research by the economists Loukas Karabarbounis and Brent Neiman, half of this decline is the result of cheaper information technology, which has enabled firms to replace workers with computers.