1.3.2.2a - Changes in supply

Analyse supply changes caused by production costs, technology, indirect taxes, subsidies and external shocks.

Use a - changes in supply to connect the rule to the data and decision in the question.

This matters because a - changes in supply determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply a - changes in supply to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: a - Changes in supply is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.