Answer:
industry driving forces and competitive pressures favor some companies or groups and hurt others and the profit potential of different strategic groups varies because of strengths and weaknesses in each strategic group's position.
Step-by-step explanation:
Strategic groups in this context refers to a group of entities who impose a similar business model/strategy.
Often times, simply by implementing similar strategies wouldn't necessarily give them similar results.
There are other factors that influence the way people behave in the market
For example
Some companies have a certain reputation that becomes a driving force for the consumers to purchase their product. Even if these companies implemented a wrong business model, they wouldn't receive as much damage since their reputation will made customers constantly back to purchase their product.
Another factors would be internet and technologies as a driving force. Often times, many people spread unjustified attacks toward a company that might ruin their sales.