This is very messed up, but not too surprising. “…we find that monthly changes in gold prices lead to an increase in girl relative to boy neonatal mortality and that the surviving girls are shorter.” The analysis of this specific correlation is new, but the study of the dynamic isn’t. For example, here’s Amartya Sen back in 1990.
Until I listened to this, I did not know much about Ruth Bader Ginsburg’s origin story. This episode of More Perfect was especially good.