Öz
The focus of the strategic management field is to achieve a sustainable competitive advantage and to display superior performance compared to others. Representing two poles in the field, Position School (PO) and Resource-Based View (RBV) agree that organizations should have a good strategy for superior performance. However, there are many controversial points on the determination of what a good strategy is. One of these controversial points is how the mission statement should be. The PO states that the mission should be created according to the industry position, while RBV asserts that the mission should be created from resources and capabilities. Hence, the study aims to answer the question of whether companies in Türkiye focus heavily on the industry or on resources and capabilities in their missions. Also, it aims to question the role of sectoral differences. In the study, the mission statements of the firms in BIST100 are subjected to content analysis. The results reveal that the firms shaped their mission statements mostly according to the opinions of PO, but there are transitions between the opinions of PO and RBV. Another finding is that sectoral differences play a role in the formation of missions.