Measuring Regional Ethnolinguistic Diversity in Sub-Saharan Africa: Surveys vs. GIS
比较了基于人口调查和地理信息系统两种方法测量撒哈拉以南非洲次国家层面民族语言多样性的效果，发现两者中度正相关，且调查指标与发展指标的负相关更强。
Abstract This paper compares two approaches to measuring subnational ethnolinguistic diversity in Sub-Saharan Africa, one based on censuses and large-scale population surveys and the other relying on the use of geographic information systems (GIS). The two approaches yield sets of regional fractionalization indices that show a moderately positive correlation, with a stronger association across rural areas. These differences matter for empirical analysis: in a common sample of regions, survey-based indices of deep-rooted diversity show a more strongly negative association with a range of development indicators relative to their highest-quality GIS-based counterparts.