The world has seen dramatic, global human progress across a broad range of indicators in recent decades, but have those gains been widely shared? The Inequality of Human Progress Index (IHPI) measures material well‐being and seven additional metrics: lifespan, infant mortality, adequate nutrition, environmental safety, access to opportunity (as measured by education), access to information (as measured by internet access), and political freedom. Across all but two of those dimensions, the world has become more equal since 1990. Globalization and market liberalization over the past few decades have not only raised absolute living standards but also reduced overall inequality.

Cato Institute Study