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A-Level Economics · Shift in demand diagram question
What could cause this rightward SHIFT of the demand curve?
The diagram
The answer
A rise in consumer incomes. A non-price factor changed: more income → more demanded at EVERY price. The classic trap: a change in the good's OWN price moves you ALONG the curve. Only non-price factors (incomes, tastes, other goods' prices) SHIFT it.
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