The Graduate School of Business Administration Zurich (GSBA Zurich) was an unaccredited business school in Switzerland. The school was founded in 1968 as "Oekreal Management Zentrum," offering Swiss professional degrees. At times, it may have operated as a diploma mill but gained some accreditation in the 2010s, albeit was not accredited by the Swiss government. In July 2009 Peter Lorange, former IMD president, bought GSBA Zurich. In 2015, GSBA was acquired by the China Europe International Business School and subsequently merged into it. References External links Information about the GSBA Zürich (Lorange Institute of Business Zürich) Dual Degree Smith-GSBA Business education Business schools in Switzerland