Suppose that all young women were channelled into careers as secretaries, nurses and teachers;

at the same time, young men were encouraged to consider these three careers and many others as well.

a Draw a diagram showing the combined labour market for secretaries, nurses and teachers.

Draw a diagram showing the combined labour market for all other fields. In which market is the wage higher? Do men or women receive higher wages on average?

b Now suppose that society changed and encouraged both young women and young men to consider a wide range of careers. Over time, what effect would this change have on the wages in the two markets you illustrated in part (a)? What effect would the change have on the average wages of men and women?