Modern Enhancements and Alternatives Recognizing these problems, economists and statisticians have developed complementary measures. “Green GDP” adjusts for environmental costs; “GDP per capita” normalizes for population; the Human Development Index blends income, education, and life expectancy; and measures of median household income, poverty rates, and Gini coefficients expose distributional dynamics. Satellite data and new accounting techniques also improve estimates of informal activity and resource depletion. Yet no single number has replaced GDP’s prominence—practicality and political convention keep it central.