On Equal Pay Day, Why The Gender Gap Still Exists. Claudia Goldin, April 12, 2016, Audio. “President Obama has declared today Equal Pay Day. There’s a reason it falls on April 12. As the proclamation says, today marks how far into the new year women would have to work in order to earn the same as men did in the previous year. Women, on average, make 79 cents for every dollar men earn. Harvard economics professor Claudia Goldin has looked into the reasons for this, and you say the reason is not primarily discrimination. Is that right?Link