This document discusses and justifies the use of a qualitative single case study research design for strategic management research. It summarizes a previous study that used this design to successfully generate a new theory called the activity-resource based view (ARBV). The document outlines the research problem, questions, and objectives of further exploring how tangible resources create competitive advantage for firms. It advocates for the use of qualitative single case studies, noting their ability to provide rich data for in-depth analysis of complex issues in context. The document also reviews literature on qualitative research and case study methodology, and discusses criteria for ensuring rigor in qualitative research like credibility, transferability, dependability and confirmability.