Competitive Advantages.

Cost leadership.

Economy of scale.

Dominant Market Share.

Differentiation

Superior Quality.

Superior Service.

Techonological Advance.

Superior Image or Branding.

Ethical/Social acceptance.

Entry Pricing.

Lowest production costs.

Focused/Specialised.

Niche Markets.

Expertise.

Legacy/Historic/Cultural Value

Industry Rivalry.

New Entrants to Market.

Supplier negotiation.

Customer freedom of choice.

Substitute/Alternative products and services