3.3.3.6b - Barriers to entry and exit

Barriers to entry and exit.

Use b - barriers to entry and exit to connect the rule to the data and decision in the question.

This matters because b - barriers to entry and exit determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply b - barriers to entry and exit to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: b - Barriers to entry and exit is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.