Banker Bot gets another connection

Business Insider: The beacon — a low-cost device that retailers can attach to store shelves or walls to communicate with customer smartphones — is coming into its own. Beacon programs are quickly moving out of beta phase and becoming an integral part of the retail industry.
Beacons can be used to power indoor maps, payments services, and location-sensitive product catalogs. There are many different beacon hardware vendors and systems — including Apple's iBeacon system — but they all share some basic characteristics. Namely, they allow retailers and event organizers to efficiently communicate indoors, without a need for GPS.

Smart Cards carried along with the shopper will  constantly adjust to the optimum ratio of dollar price plus coupon price. Consumer do not even have to look, Smart Card will always pay the optimum, unhedged price, up to the moment. The coupon price will always match Banker Bots no arbitrage deposit and loan rates. The inventory flow will always be minimum volatility. Goods distribution everywhere 'just in time'.