When I first started working full-time my parents knew that I would have trouble saving without a rigid plan in place. And so they asked me to join a kye. The Korean kye, which means contract or bond, is a credit rotating system built on trust and honesty. It dates back hundreds of years when it was first used to pay official grain loans and military taxes. Since then, the kye has been transformed to finance small businesses, weddings, and funerals. These days, the kye is not only a financial function but a social one as well, where members meet every month to socialize, choose the winner, and celebrate. A typical kye has fifteen members who contribute $500 every month. The winner of the jackpot (in this case,...