This document summarizes several models for analyzing a company's external environment and strategic position:
1. PEST/PESTEL analysis categorizes macroenvironmental influences into political, economic, social, and technological factors.
2. Porter's Five Forces model examines industry-level competitive forces like rivalry, new entrants, substitutes, supplier power and buyer power.
3. Porter's Diamond framework analyzes national-level determinants of competitive advantage like factor conditions, demand conditions, related and supporting industries, and firm strategy, structure and rivalry.
These models segment environmental factors to aid closer strategic analysis, but must be followed by considering business responses. Technological changes like digitalization now strongly influence markets