Have professional women disproportionally contributed to the growth of the luxury goods market?

Answer 1

Luxury good are purchased by high income households which, more often than not, have two or more earners, see
http://www.visualizingeconomics.com/2006/10/29/income-by-number-of-earners/
Although professional women on average earn less than professional men, they often marry high earing professional men and are the second earner in households and provide the extra income to purchase Luxury goods.

Answer 2

Drop the word professional in your statement and it's true.