Detecting Problems in Survey Data Using Benford’s Law
展示如何用本福特定律（数字首位分布规律）检验调查数据异常，分析九个常用数据集后发现发展中国家数据质量较差，美国数据较好，男女受访者数据质量相近。
"It is 15:00 in Nairobi. Do you know where your enumerators are??" Good quality data is paramount for applied economic research. If the data are distorted, corresponding conclusions may be incorrect. We demonstrate how Benford's law, the distribution that first digits of numbers in certain data sets should follow, can be used to test for data abnormalities. We conduct an analysis of nine commonly used data sets and find that much data from developing countries is of poor quality while data from the United States seems to be of better quality. Female and male respondents give data of similar quality.