The interaction of markets (OCR A-Level Economics): Flashcards

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The interaction of markets
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Ceteris paribus meaning

All other things being equal

Economic efficiency

Optimal use of resources to maximise overall welfare or output

Pareto efficiency

No one can be better off without making someone else worse off

Demand curve slope direction

Downwards from left to right

Supply curve slope direction

Upwards from left to right

Market equilibrium point

Where demand and supply curves intersect

Equilibrium condition

Qd=QsQ_d = Q_s

When does surplus (excess supply) occur?

Price is above equilibrium

When does shortage (excess demand) occur?

Price is below equilibrium

Effect of surplus on price

Downward pressure on price

Effect of shortage on price

Upward pressure on price

Demand curve price-quantity relationship

Inverse relationship

Supply curve price-quantity relationship

Direct relationship

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