Economics on The Standard Errorhttps://jongha-jeon-dev.github.io/standarderror/tags/economics/Recent content in Economics on The Standard ErrorHugo -- 0.123.7en-gbThu, 10 Sep 2026 00:00:00 +0000Headline Statistics 1: Korea's Fertility Rebound Needs Nobody to Have More Childrenhttps://jongha-jeon-dev.github.io/standarderror/lectures/headline-statistics-1-fertility-tempo/Thu, 10 Sep 2026 00:00:00 +0000https://jongha-jeon-dev.github.io/standarderror/lectures/headline-statistics-1-fertility-tempo/The total fertility rate is not children per woman. It is one calendar year of age-specific rates stacked into the completed family size of a woman who does not exist, and a pure change in the timing of births moves it while no cohort's family size moves at all.Headline Statistics 2: Everyone's Wage Rose and the Median Fellhttps://jongha-jeon-dev.github.io/standarderror/lectures/headline-statistics-2-wage-composition/Thu, 10 Sep 2026 00:00:00 +0000https://jongha-jeon-dev.github.io/standarderror/lectures/headline-statistics-2-wage-composition/A wage statistic compares two populations, not two payslips. Once hiring and firing happen between the two prints, the difference carries a term that has nothing to do with anybody's pay - and it is large enough to reverse the sign.Headline Statistics 3: Two Countries, One Gini, Opposite Policieshttps://jongha-jeon-dev.github.io/standarderror/lectures/headline-statistics-3-gini-shape/Thu, 10 Sep 2026 00:00:00 +0000https://jongha-jeon-dev.github.io/standarderror/lectures/headline-statistics-3-gini-shape/A scalar cannot carry a shape. The Gini is many-to-one onto distributions, and so are the percentile ratios and the poverty headcount - so two worlds needing opposite policies can agree on five headline numbers at once.