This document summarizes key concepts from Chapter 4 of the textbook, including core competencies, the resource-based view of the firm, dynamic capabilities, and using SWOT analysis. It defines core competencies as unique strengths embedded within a firm that allow it to differentiate. It explains that the resource-based view sees certain valuable, rare, costly-to-imitate resources as sources of competitive advantage. Dynamic capabilities allow firms to modify their resource bases over time. SWOT analysis combines internal and external analysis to identify ways to leverage strengths and opportunities and address weaknesses and threats.