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Supply and Demand Dynamics in Economics Quiz

#1

What is the term used to describe a situation where the quantity demanded exceeds the quantity supplied at a given price?

Shortage
Explanation

Shortage occurs when demand outstrips supply at a specific price level.

#2

What does the law of demand state?

As the price of a good increases, the quantity demanded decreases
Explanation

Consumers generally demand less of a good as its price rises, adhering to the law of demand.

#3

What is the term used to describe a situation where the quantity supplied exceeds the quantity demanded at a given price?

Surplus
Explanation

Surplus occurs when there is an excess of supply over demand at a specific price point.

#4

Which of the following is NOT a determinant of demand?

Price of inputs
Explanation

The price of inputs primarily influences supply, not demand.

#5

What would cause a movement along the demand curve rather than a shift?

Change in the price of the good
Explanation

A change in the price of the good itself leads to movement along the demand curve, not a shift.

#6

What is the relationship between price and quantity supplied according to the law of supply?

As price increases, quantity supplied increases
Explanation

The law of supply dictates that producers are willing to supply more goods at higher prices.

#7

What happens to the equilibrium price and quantity when demand increases and supply decreases?

Equilibrium price increases; equilibrium quantity decreases
Explanation

Increase in demand puts upward pressure on price, while decrease in supply leads to a reduction in quantity.

#8

Which of the following factors would likely cause a rightward shift in the supply curve?

Technological advancements
Explanation

Technological advancements often increase production efficiency, shifting the supply curve to the right.

#9

Which of the following factors is likely to cause a leftward shift in the demand curve for a product?

Increase in the price of a substitute good
Explanation

A rise in the price of a substitute prompts consumers to favor the original product, shifting the demand curve left.

#10

What is the price elasticity of demand formula?

Percentage change in price / Percentage change in quantity demanded
Explanation

Price elasticity of demand is calculated by dividing the percentage change in quantity demanded by the percentage change in price.

#11

What is the effect of an increase in supply on equilibrium price and quantity?

Equilibrium price decreases; equilibrium quantity increases
Explanation

A rise in supply leads to a lower price and a higher equilibrium quantity.

#12

What is the term used to describe the measure of responsiveness of quantity demanded to a change in price?

Price elasticity of demand
Explanation

Price elasticity of demand quantifies how much quantity demanded changes in response to a change in price.

#13

In the market for apples, if the price of oranges (a substitute for apples) increases, what happens to the equilibrium price and quantity of apples?

Equilibrium price increases; equilibrium quantity increases
Explanation

As oranges become more expensive, consumers shift to apples, driving up both price and quantity in the apple market.

#14

What is the likely effect of a decrease in consumer income on the market for luxury cars?

Equilibrium price decreases; equilibrium quantity increases
Explanation

Decreased income reduces demand for luxury cars, leading to lower prices but potentially higher quantity demanded.

#15

If the cross-price elasticity of demand between two goods is positive, what type of goods are they?

Substitute goods
Explanation

Positive cross-price elasticity indicates that the goods are substitutes, meaning an increase in the price of one leads to an increase in demand for the other.

#16

If the demand for a good is perfectly elastic, what does this imply about the price elasticity of demand?

It is equal to infinity
Explanation

Perfectly elastic demand means consumers will only buy at a specific price, resulting in infinite elasticity.

#17

If the income elasticity of demand for a good is negative, what type of good is it?

Inferior good
Explanation

A negative income elasticity indicates that the good is inferior, meaning demand decreases as consumer incomes rise.

#18

If the cross-price elasticity of demand between two goods is negative, what type of goods are they?

Complementary goods
Explanation

Negative cross-price elasticity indicates that the goods are complementary, meaning an increase in the price of one leads to a decrease in demand for the other.

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