Using the text from job ads, we introduce a new dataset to describe the evolution of work from 1950 to 2000. We show that the transformation of the US labor market away from routine cognitive and manual tasks and toward nonroutine interactive and analytic tasks has been larger than prior research has found, with a substantial fraction of total changes occurring within narrowly defined job titles. We provide narrative and systematic evidence on changes in task content within job titles and on the emergence and disappearance of individual job titles.

中文翻译：

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美国工作的演变

利用招聘广告中的文字，我们引入了一个新的数据集来描述 1950 年到 2000 年的工作演变。我们表明，美国劳动力市场从常规认知和手工任务转向非常规交互和分析任务的转变幅度更大与之前的研究发现相比，总体变化的很大一部分发生在狭义的职位名称中。我们提供有关职位名称中任务内容变化以及个人职位名称的出现和消失的叙述性和系统性证据。