If both supply and demand shift, but you don't have information about which curve shifted the most, then the direction of the change in either price or quantity (but not both) can be predicted.

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If both supply and demand shift, but you don't have information about which curve shifted the most, then the direction of the change in either price or quantity (but not both) can be predicted. This is because the shift in one curve will have a greater impact on the equilibrium price and quantity than the shift in the other curve.

If Both Supply and Demand Shift, but You Don't Have