In collective or many case studies, numerous cases are very carefully selected. This delivers the benefit of enabling comparisons to generally be built across quite a few cases and/or replication. Picking a "regular" case may well allow the findings being generalised to theory (i.e. analytical generalisation) or to check principle https://dominickgoape.blogkoo.com/case-study-analysis-can-be-fun-for-anyone-51443166