The correct statement is:

“The firms within each group compete in similar ways.”

Why this is true (in simple terms)

  • A strategic group is a set of firms in the same industry that follow a similar business model or strategy.
  • Because they use similar strategies, resources, and ways of competing (for example, similar price levels, product quality, or distribution channels), the firms within a strategic group tend to compete in similar ways.
  • As a result, rivalry is usually strongest inside a strategic group, since these firms target similar customers with similar offerings.

Why the other options are wrong (quick check)

  • “The firms within each group are unlikely to target the same customer segment.” → This is false, they often target very similar customer segments.
  • “They exclude rivals who share a similar business model.” → Also false; sharing a similar business model is exactly what puts firms in the same strategic group.
  • “They identify allies in business groups.” → Strategic groups describe competitors , not allies; the idea is about mapping rival positions within an industry.

So if you must “select one,” choose:

The firms within each group compete in similar ways. ✅

Information gathered from public forums or data available on the internet and portrayed here.