Because they give you a foothold into the world of Business :) School because it is any institution at which instruction is given in a particular discipline. Here it is Business, hence Business school, a.k.a B-School. read more
A business school teaches topics such as accounting, administration, strategy, economics, entrepreneurship, finance, human resource management, management science, management information systems, international business, logistics, marketing, organizational psychology, organizational behavior, public relations, research methods and real estate among others, which are the courses included in a MBA program. That’s why the institution which offers MBA degree are called as B-Schools. read more
MBA is not just a course that you study just for qualification, its a real time study of things. How things work in the market and how the business can thrive with minimal amount of resources etc. So MBA colleges are called B-schools. read more