This week we’re bringing you our favorite episodes of the year.

There’s a group of venture capital firms that want to change the world for the better and make money. This is called impact investing. One of the firms working in this space is Impact America Fund, which invests in companies with diverse missions — for instance, a startup that helps African-American stylists sell their own hair extensions. Marketplace Tech host Molly Wood talks with Impact America Fund founder Kesha Cash about the sometimes complex collision of money and mission in venture capital.