Baggage tags, banknotes with electronics embedded for security and even postage stamps that can be read by smart franking machines are other possible uses.

ECONOMIST: A new use for a common material

Pitney Bowes, which makes products related to post, such as sorters and franking machines, could see demand for its services rise if the delivery week is cut short, says its chief financial officer, Michael Monahan.

ECONOMIST: America s struggling postal service