Hardware controls include power, selection and volume up and down, while the smartglasses also gauge 3-degrees of freedom through head-tracking, alongside an integrated compass and GPS. The built-in camera is capable of 1080p video in 16:9 aspect ratio, although it'll be able to capture stills too.

ENGADGET: Vuzix Smart Glasses M100 hands-on at CES 2013 (update: now with video!)

Price-sensitive health services might also be interested in bundled deals for the broad selection of cancer and cardiovascular pills that Roche now controls.

ECONOMIST: Pharmaceutical takeovers

The government's answer to years of persistent inflation has been price controls and Mercal, a state-owned and subsidised grocery chain that offers a limited selection of staples at discounts of up to 40%.

ECONOMIST: Hard times on the streets of Caracas