17 March is ‘Equal Pay Day’: By that date, 21 percent of the year is over, exactly the 21 percent that women in Germany on average earn less than men. This means that a given ‘average woman’ would work for free up until this date if she received a man’s average salary for the rest of the year. On this occasion, we talk to Susanne Strauß, professor of sociology and a specialist in gender studies.