I‘ve written extensively on how the gender wage gap would be more accurately referred to as the “gender earnings gap,” because the gap is due mostly to choices women make and not discrimination.

But now you don’t have to take my word for it, you can listen to Claudia Goldin, an economics professor at Harvard University. Goldin spoke to Stephen Dubner, the journalist behind the popular podcast “Freakanomics,” in a segment about what really causes the gap.