The Economist produces a number of very good audio guides for busy business travelers to use before and during a visit to the major cities of the world. These Economist 'Doing business in...' audio guides are a great complement to the Economist's city guides.

Life as a frequent traveler, with boozy business meetings or nights out with long-missed friends, means you'll suffer from hangovers on a regular basis. Here are the best tips to prevent the dreaded hangover.