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Microeconomics: Movement along and shift of the demand curve

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What is the difference between a movement along and shift of the demand curve? Show the impact on the equilibrium price and quantity that results from; (1) an increase in demand, (2) an increase in supply, (3) an increase in both supply and demand. Give an example of the role of supply and demand in decision making.

Could you please explain the above questions?

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Movement along the demand curve usually entails a change in the price of the product or change in the quantity demanded. A movement of the demand curve (or shift in the demand curve) occurs because of some other reason. A shift in demand curve can occur because of an increase/decrease in income, an increase/decrease in the number of substitutes etc.

An increase in demand will lead to a increase in equilibrium quantity and price.
An increase in supply will lead to a decrease in equilibrium price but an increase in equilibrium quantity. An increase in both supply and demand will lead to an increase in equilibrium quantity. However, the impact on price cannot be estimated. If the demand increase is more than ...

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Answers and explanations for common multiple-choice Macroeconomics test questions.

Question #1
What is the short term economic outcome if price levels in the US increase and consumers buy less output as a result?
1. Aggregate demand shifts to the right.
2. Aggregate demand shifts to the left.
3. Aggregate demand does not shift, movement along this curve.

2. Question #2
Suppose that the real wealth of households increases significantly. As a result, the short term impact is that
1. Aggregate demand shifts to the right.
2. Aggregate demand shifts to the left
3. Aggregate demand does not shift, instead there is a movement along this curve.

3. Question #3
When expectations for corporate profits are diminished, economists expect that in the short term
1. Aggregate demand shifts to the right.
2. Aggregate demand shifts to the left.
3. Aggregate demand does not shift, instead there is a movement along this curve.

4. Question #4
If a series of tornados damages factories and infrastructure in the industrial regions of the US, a short term consequence is that
1. Aggregate supply shifts to the right.
2. Aggregate supply shifts to the left.
3. Aggregate supply does not shift, instead there is a movement along this curve.

5. Question #5
If companies invest in more efficient machinery and equipment, then
1. Aggregate supply shifts to the right for the short term.
2. Aggregate supply shifts to the left for the short term.
3. Aggregate supply does not shift, instead there is movement along this curve in the short term.

6. Question #6
If the Environmental Protection Agency significantly relaxes (reduces) environmental regulations, then one short term outcome is that
1. Aggregate supply shifts to the right.
2. Aggregate supply shifts to the left
3. Aggregate supply does not shift, instead there is a movement along this curve.

7. Question #7
In an effort to reduce budget deficits, the federal government decides to reduce its spending. The reduction is likely to impact both real GDP and the aggregate price level in the THE SHORT TERM. In fact:
1. Real GDP increases and the price level decreases.
2. Real GDP decreases and the price level decreases.
3. Real GDP increases and the price level increases
4. Real GDP decreases and the price level increases.

8. Question #8
Suppose that potential shareholders anticipate an increase in profitability so that there is a sharp increase in stock prices. In the short term,
1. Real GDP increases and the price level decreases.
2. Real GDP decreases and the price level decreases.
3. Real GDP increases and the price level increases.
4. Real GDP decreases and the price level increases.

9. Question #9
A widespread technological advance occurs so that the industrial sector of the economy becomes more efficient. In the short run:
1. Real GDP increases and the price level decreases.
2. Real GDP decreases and the price level decreases.
3. Real GDP increases and the price level increases.
4. Real GDP decreases and the price level increases.

10. Question #10
Remarkably, the price of an important raw material decreases. The price change leads to a short term
1. Increases in real GDP and the price level decreases.
2. Decreases in real GDP and the price level decreases.
3. Increases in real GDP and the price level increases.
4. Decreases in real GDP and the price level increases.

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