Just three years ago, the World Bank estimated that 2½ billion adults (15 years and above) had no access to modern finance: no bank deposit, no formal credit, and no means of payment other than cash or barter. Stunningly, the Bank now estimates that even as the global population has increased, the number of “unbanked” has dropped by 20 percent. Between 2011 and 2014, 700 million adults have gained at least basic financial access via banks or mobile phone payments systems...