Porter Five Forces Analysis

Conduct a Porter's Five Forces analysis for [INDUSTRY/COMPANY]:

Industry: [INDUSTRY]
Focus company: [COMPANY NAME (optional)]
Geography: [MARKET]
Time horizon: [CURRENT/5-YEAR OUTLOOK]

For each force rate intensity (Low/Medium/High) and explain:
1. **Competitive Rivalry**: Number of competitors, differentiation, switching costs
2. **Threat of New Entrants**: Barriers to entry, capital requirements, regulations
3. **Supplier Power**: Concentration, switching costs, forward integration threat
4. **Buyer Power**: Concentration, price sensitivity, backward integration threat
5. **Threat of Substitutes**: Available alternatives, switching costs, performance

End with: Overall industry attractiveness score and strategic implications.