Bloomberg Bussiness Week, formerly BusinessWeek, is a weekly magazine with a focus on economic issues. It was first published in September 1929 under the title The Business Week, beginning of McGraw- Hill. End of 2009, she was by Bloomberg L.P. taken. Since 1988, the journal publishes annual rankings of courses of study for the Master of Business Administration, this " apply in the U.S. as an institution. " Their expressiveness based on enterprise survey and the teaching schools is controversial in Germany.