How are the porters five forces used in the retail industry?

Porter's 5 Forces of Competition apply to any Competitive Business/Industry, including but not limited to the retail industry.
- Threat of a New Competitor
- Threat of a substitute (rival) product/service
- Buying Power (bargaining power of buyers)
- Supplier Reliance (supplier bargaining power)
- Intensity of Rivalry - they say competition brings out the best in us.

For a detailed explanation of Porter's 5 Forces and free Templates to use for analysis check out the site BusinessBalls.