The term “social capital” is new to a lot of us, but the concept isn’t. We’ve grown up with friends that we could call up in a pinch and ask to watch your kids, or cut your grass, or borrow $20 until payday. And they do it. Why? Because you have history, a relationship, and you’ve earned the right to ask your friend to do what friends do. Sociologists call this “social reciprocity”…



