About 2 percent of the global population lives in countries where they're not citizens, and many of these migrants are seeking economic opportunities. This flow of people can benefit countries with aging populations and shrinking workforces, but only when migrants' skills are in demand in the places where they land. Today on the show, we look at what it can take to make a good match.For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy