In an informal test of solar lights carried out by The Economist in Africa, users grumbled about the soapy quality of light and lantern-style design.

ECONOMIST: Solar lighting

In a standardised test the informal private schools actually came out best, with an average mark of 59.5% in English, compared with 22.4% in the government schools.

ECONOMIST: Infrastructure is India��s biggest handicap

Employees are urged to wander from floor to floor, bounce ideas off one another and test out new products in the hope that such informal interactions will help spark collaboration, solve problems and generate new ideas.

WSJ: Looking for Ideas in Shared Workspaces