An Original Theoretical and Methodological Contribution to Measuring Strategic Flexibility in Nigerian Firms Facing Environmental Turbulence

Strategic flexibility, the capacity of firms to rapidly adapt their strategies and resource configurations to environmental change, is critically important in Nigeria's turbulent business environment, yet its theoretical conceptualisation and measurement methodology in this context remain underdeveloped. This study makes original theoretical and methodological contributions to strategic flexibility measurement in Nigerian firms by developing the Nigerian Strategic Flexibility Index (NSFI), a theoretically grounded, empirically validated measurement instrument calibrated for the Nigerian institutional and competitive environment. Theoretical development draws on dynamic capabilities theory, real options theory, and strategic management research, constructing a multi-dimensional flexibility model that includes resource flexibility (financial, human, and technological), strategic process flexibility (decision speed, option creation, and abandonment flexibility), and environmental sensing capability. An original Item Generation and Scale Development Methodology is employed, progressing through construct definition, expert item review (40 panellists), exploratory factor analysis (pilot sample: 200 firms), and confirmatory factor analysis (full validation sample: 400 firms across Nigeria's six geopolitical zones). The resulting NSFI comprises 28 items loading onto 6 dimensions. Nomological validity is established by confirming theoretically predicted relationships between NSFI scores and firm performance under high-turbulence conditions (delta R2 = 0.18, p < 0.001 for performance variance explained by NSFI over and above conventional firm characteristics). Test-retest reliability (ICC = 0.87) and construct validity (AVE: 0.64 to 0.79) confirm measurement quality. The NSFI constitutes an original and practically useful strategic management tool for Nigerian executives and researchers, enabling the first systematic cross-firm and cross-industry comparison of strategic flexibility in Nigeria. Keywords: strategic flexibility, measurement methodology, dynamic capabilities, Nigeria, scale development