The primary article source, Claudia Goldin's research paper: http://scholar.harvard.edu/files/goldin/files/goldin_aeapress_2014_1.pdf http://scholar.harvard.edu

The primary article source, Claudia Goldin's research paper: http://scholar.harvard.edu/files/goldin/files/goldin_aeapress_2014_1.pdf http://scholar.harvard.edu/files/goldin/files/goldin_aeapres...