Good point Bobber, my husband has done/ is doing the 100% thing. Might be that this refers to certain countries.
"The United Nations Economic and Social Commission for Asia and the Pacific Countries also points to the relationship between women in the workforce and higher GDP, noting that growth in India, for example, would increase by 1.08 ppt if its female labor-participation rate were put on par with the US. In the book, Women Empowered: Inspiring Change in the Emerging World (2007), former US Secretary of State Madeleine Albright cites the economic benefits of investing in women, pointing out that women reinvest 90% of their income in their families and communities, compared to men who reinvest only 30% to 40% of their income. Entrepreneur Vikram Akula, who founded SKS Microfinance in 1998 to spur development in rural India, has provided about US$275 million in loans and life insurance to more than 900,000 women living in India’s slums and villages while enjoying a 99% repayment rate. Akula attributes the high repayment rate to the fact that women are more likely than men to support each other (e.g., in repaying the loan) and to invest in their households."