Varieties of Democracy (V-Dem) is a new approach to the conceptualization and measurement of democracy. It is co-hosted by the University of Gothenburg and University of Notre Dame. With a V-Dem Institute at University of Gothenburg that comprises almost ten staff members, and a project team across the world with four Principal Investigators, fifteen Project Managers, 30+ Regional Managers, 170 Country Coordinators, Research Assistants, and 2,500 Country Experts, the V-Dem project is one of the largest-ever social science research-oriented data collection programs.Please address comments and/or queries for information to: We draw on the new Varieties of Democracy dataset, which provides a highly differentiated set of democracy indicators, and a new collection of mortality data compiled by the Gapminder project. With these tools, we are able to conduct panel analyses that include most (semi-)sovereign countries from 1900 to the present -a much more extensive sample than has ever been mustered for this particular research question. We find that composite indices such as Polity have a tenuous relationship to human development, while indices focused on the electoral component of democracy yield a highly robust relationship.3