My background was computer science and business school, so eventually I worked my way up where I was running product groups - development, testing, marketing, user education.

Men make different investments than women do. Women tend to invest more of their earnings than men do in their family's well-being - as much as 10 times more.

Mothers might say they'd go to the doctor. In poor countries, moms are usually responsible for their kids' health. But breastfeeding and traveling to the clinic take time, and research shows that health care is one of the first tradeoffs women make when they're too busy.

As a parent, the responsible thing to do - if you love your child - is to vaccinate your child.

If you don't invest in the woman, empower her, give her the things she needs to lift her family up, you're just not going to make the progress that you want to make. But if you put her at the centre, you can change a lot for that family, and it has ripple effects through the economy.

Even in our own agriculture strategy, if we got a great new drought-resistant seed and we managed to get it distributed in the system, we just assumed that it would reach female farmers. That's a false assumption, because women don't interact with agro-dealers. So if you don't develop specific programming to ensure that seed gets in a woman's hands, then the extra income [generated by higher-yielding crops] goes into her husband's hands.

If you invest in a girl or a woman, you are investing in everybody else.