To offer insight into an issue, and especially to help refine a concept. Principle is of Principal importance; the case is selected for its prospective contribution to concept. Based on Yin, theoretical case studies should be several. Based on Stake, theory is usually designed from a single case. This sort https://lorenzoouhyl.thenerdsblog.com/45944208/hbr-case-solution-things-to-know-before-you-buy