Amazon and Mexico's central bank are working on CoDi, a mobile payments system that lets consumers make payments using QR codes; testing begins this month (Stefanie Eschenbacher/Reuters)

Stefanie Eschenbacher / Reuters:
Amazon and Mexico's central bank are working on CoDi, a mobile payments system that lets consumers make payments using QR codes; testing begins this month  —  MEXICO CITY (Reuters) - Mexico's central bank is in talks with Amazon.com Inc to launch a new government-backed mobile payment system …