Supply
Quantity of a product producers are willing and able to provide at different prices in a given time period.
Real World
When oil prices rise, Saudi Aramco and other producers expand output because higher revenues make previously costly extraction methods worthwhile — illustrating the law of supply in action.
Exam Focus
Distinguish a movement along the supply curve (price change) from a shift of the curve (non-price factor) — examiners reward this precision.
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