Technology is rapidly increasing our ability to conduct transactions without any human interactions. Shown here: The Hyundai Card Air Lounge at Incheon International Airport, Korea. Original photo by Ryan Gobuty, © Gensler.

Retailers around the world are experimenting with technology to increase sales. Generally speaking the focus is around empowering customers with information and access to bring them closer to the buying motion with as little effort as possible. New store models that are as simple as posters on walls with pictures and symbols, such as the Tesco installation in the Korean subway, are letting customers make impromptu purchases in nontraditional transaction environments.