It is the abbreviation used to refer to business schools, which are education institutions that give focus on business-related courses. Although these schools offer courses from undergraduate degrees up to postdoctoral programs, the flagship offering of these schools is the MBA or the Master of Business Administration program. The top business schools in the world are known for the quality of their graduates, many of these graduates climb the corporate ladder to reach top positions and high executive ranks in their different companies, corporations and organizations.