Its interpretation of the proof posits early 20 th millennium since the a turning area to have skill-tech complementarity

Its interpretation of the proof posits early 20 th millennium since the a turning area to have skill-tech complementarity Some scholars, instance Goldin and Sokoloff (1982) and you may Humphries (2013) interpreted brand new hefty dependence of women and children when you look at the mid-19 th millennium as the research you to definitely commercial […]