This study analyzes the relationship between social inclusion of lesbian, gay, bisexual, and transgender (LGBT) people and economic development. It uses legal and economic data for 132 countries from 1966 to 2011. Previous studies and reports provide substantial evidence that LGBT people are limited in their human rights in ways that also create economic harms, such as lost labor time, lost productivity, underinvestment in human capital, and the inefficient allocation of human resources.