As Seawright and Gerring note, practical considerations such as time and access to information can influence case selection, but these issues should not be the sole factors used in describing the methodological justification for identifying a particular case to study.
Explain how they are linked and what elements of the case will help to expand knowledge and understanding about the problem. Explain why your case study will be suitable in helping to expand knowledge and understanding about the research problem.
The following are some tips on how to make your case studies a powerful asset in soliciting business. Note that a general social sciences research paper may contain a separate section to report findings.
How will this study advance new knowledge or new ways of understanding?
For example, anecdotal evidence may suggest drug use among homeless veterans is related to their patterns of travel throughout the day. Review this page because it may help you identify a subject of analysis that can be investigated using a single case study design.