Measuring Governments: Indices and Their Limits

How can we tell whether a country is becoming more or less democratic? Researchers build indices that score countries on elections, civil liberties, courts, media freedom and more. Freedom House, founded in 1941, publishes yearly 'Freedom in the World' ratings; the Economist Intelligence Unit's Democracy Index began in 2006; the Polity project scores regimes on a scale from autocracy to democracy; and Varieties of Democracy (V-Dem), based at the University of Gothenburg, uses thousands of expert assessments.

Such data allow comparison across countries and over time. But indices involve choices: what counts as democracy, how to weight different features, and whose judgements to trust. Different indices sometimes disagree, and critics argue some reflect particular Western assumptions. Good analysts treat scores as evidence to be examined, checking definitions and methods rather than treating a single number as the final truth.