<P> Since July 2007, there has also been a complete audio edition of the news magazine available 9pm London time on Thursdays . The audio version of The Economist is produced by the production company Talking Issues . The company records the full text of the news magazine in mp3 format, including the extra pages in the UK edition . The weekly 130 MB download is free for subscribers and available for a fee for non-subscribers . </P> <P> The publication's writers adopt a tight style that seeks to include the maximum amount of information in a limited space . David G. Bradley, publisher of The Atlantic, described the formula as "a consistent world view expressed, consistently, in tight and engaging prose". </P> <P> There is a section of economic statistics . Tables such as employment statistics are published each week and there are special statistical features too . It is unique among British weeklies in providing authoritative coverage of official statistics and its rankings of international statistics have been decisive . In addition, The Economist is known for its Big Mac Index, which it first published in 1986, which uses the price of the hamburger in different countries as an informal measure of the purchasing power of currencies . </P> <P> The publication runs several opinion columns whose names reflect their topic: </P>

When does the new issue of the economist come out