Text as Data
介绍如何将数字文本作为经济研究的输入，讨论文本数据的独特特征、相关统计方法，并综述多种应用场景，适合对文本分析感兴趣的经济学者。
An ever-increasing share of human interaction, communication, and culture is recorded as digital text. We provide an introduction to the use of text as an input to economic research. We discuss the features that make text different from other forms of data, offer a practical overview of relevant statistical methods, and survey a variety of applications.