Bill Maurer, anthropology and law professor and Institute for Money, Technology and Financial Inclusion director, has been providing expert opinion on digital payment methods to industry experts, news media and others interested in this rapidly growing sector of financial services. Originally developed as a means to provide banking and money transfer services to the poor, mobile money in the developed world offers convenience as well as a potentially unintended advertising channel through which to reach consumers, Maurer says. Watch here as he talks about the new Starbucks Square alliance and how the role of mobile money is changing.