Kathryn interviews The Economist’s Cuba Correspondent Roseann Lake, author of “Leftover in China: The Women Shaping the World’s Next Superpower”. Known as "leftovers" if they fail to marry by age twenty-five, these women represent a China in which gender roles have not evolved as vigorously as society itself, and where new professional opportunities have made women less willing to compromise their careers or concede to marriage for the sake of it.