There are three main types of descriptive methods: observational methods, case-study methods and survey methods.

描述性研究法一共分为三类：观察法，案例分析法以及调研法。

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This rise in prestige has been mirrored by a revamp of undergraduate business programs, with the top ones increasingly resembling MBAs thanks to an emphasis on the rigorous study of economics, statistics and accounting and MBA-like teaching methods using case studies and team exercises.

CNN: Starting out young