What is the difference between Masters in Management Studies and Masters in Business Administration courses

What is the difference between Masters in Management Studies and Masters in Business Administration courses ?
What is the difference between Masters in Management Studies (M.M.S) and Masters in Business Management (M.B.A) courses? these courses are done after graduation. I heard that these courses are equivalent but how?
Higher Education (University +) - 1 Answers

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They are both degree you will never use unless you own a business.