86. Governments' Economic Responses to COVID-19 (Econ-Response2covid19) Bookmark Format Series - ongoing
95. IPUMS IHGIS (International Historical Geographic Information System) Bookmark Format Data archive or collection
97. IPUMS TERRA (Terra Populus: Integrated Data on Population and Environment) Bookmark Format Data archive or collection
99. Low- and Middle-Income Country Primary Health Care Expenditures Bookmark Format Series - completed
100. Measurement of Cross-cutting Cleavages and Other Multidimensional Cleavage Structures Bookmark Format Series - ongoing