This week, I’m taking you not to stock exchanges, banks or mutual fund houses, but to a different corner of the earth: war-torn streets. Imagine a child crying near a place where her home once stood. The roof is gone. The walls are gone. Her parents are gone. Only she remains. Now, place a marshmallow in front of the child. Tell her that if she waits for 15 more minutes, she would get one more. Ask yourself: will she wait?

Walk into a crumbling classroom in Sudan. Meet a girl who hasn’t seen her home for more than two years. Will she wait to grab the second marshmallow?