81. Polity V: Political Regime Characteristics and Transitions, 1800-2018 Bookmark Format Series - ongoing
83. Pre-Vaccine Era COVID-19 Infection Fatality Ratio Estimates by Age, Time, and Location 2020-2021 Bookmark Format Single study
91. Sectoral coverage and prices of carbon pricing mechanisms introduced since 1990 Bookmark Format Single study
96. Transition to agriculture and first state presence: A global analysis Bookmark Format Single study
100. United Nations Surveys of Crime Trends and Operations of Criminal Justice Systems (1970+) Bookmark Format Series - ongoing