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Principles of Demand and Market Behavior Quiz

#1

Which of the following is NOT a determinant of demand?

Government regulations
Explanation

Government regulations do not directly influence consumer demand as determinants usually focus on consumer preferences, income, prices, and related factors.

#2

What does the law of demand state?

As price increases, quantity demanded decreases
Explanation

The law of demand asserts an inverse relationship between price and quantity demanded—higher prices typically lead to lower quantities demanded.

#3

Which of the following is a determinant of supply?

Government policies
Explanation

Government policies, such as taxes and regulations, can impact the supply side of the market by influencing production costs and availability of resources.

#4

What is the law of supply?

As price increases, quantity supplied increases
Explanation

The law of supply posits a direct relationship between price and quantity supplied—higher prices generally lead to an increase in the quantity of a good supplied.

#5

If the price of a substitute good increases, what is the likely effect on the demand for the original good?

Increase
Explanation

When the price of a substitute good rises, consumers are more likely to choose the original good, leading to an increase in its demand.

#6

Which of the following is a characteristic of a perfectly competitive market?

A large number of buyers and sellers
Explanation

Perfectly competitive markets involve numerous buyers and sellers, promoting fair competition without significant market power for any participant.

#7

What happens to equilibrium price and quantity if both demand and supply increase?

Price increases, quantity increases
Explanation

Simultaneous increases in both demand and supply generally lead to a higher equilibrium price and quantity in the market.

#8

Which of the following statements is true regarding a market in long-run equilibrium under perfect competition?

Price is equal to marginal cost
Explanation

In long-run equilibrium for a perfectly competitive market, price aligns with marginal cost, ensuring economic efficiency.

#9

What is the main difference between a monopoly and monopolistic competition?

Barriers to entry
Explanation

Monopolies face high entry barriers, limiting competition, while monopolistic competition involves multiple firms with lower entry barriers.

#10

What does the cross-price elasticity of demand measure?

The responsiveness of quantity demanded to a change in the price of related goods
Explanation

Cross-price elasticity gauges how the quantity demanded of one good changes in response to a change in the price of another related good.

#11

What is the law of diminishing marginal utility?

As consumption increases, marginal utility decreases
Explanation

The law of diminishing marginal utility posits that as individuals consume more units of a good, the additional satisfaction derived from each additional unit decreases.

#12

What does the income elasticity of demand measure?

The responsiveness of quantity demanded to a change in income
Explanation

Income elasticity of demand gauges how consumer demand changes in response to fluctuations in income levels.

#13

In a monopolistic competition market, firms differentiate their products to:

Decrease price elasticity of demand
Explanation

Product differentiation in monopolistic competition aims to reduce price elasticity by making products appear unique, limiting easy substitution by consumers.

#14

What is a Giffen good?

A good for which the income effect dominates the substitution effect
Explanation

Giffen goods exhibit an unusual behavior where higher prices lead to increased demand due to the dominating impact of the income effect over the substitution effect.

#15

What is the difference between a normal good and an inferior good?

Normal goods have a positive income elasticity of demand, while inferior goods have a negative income elasticity of demand
Explanation

Normal goods experience increased demand as incomes rise, while inferior goods see increased demand when incomes fall.

#16

What is the price elasticity of demand for a perfectly elastic demand curve?

Infinity
Explanation

A perfectly elastic demand curve indicates infinite elasticity, meaning any price change results in an instantaneous quantity demanded change.

#17

If the demand for a good is perfectly inelastic, what is the elasticity coefficient equal to?

0
Explanation

Perfectly inelastic demand means the quantity demanded does not change in response to price variations, resulting in an elasticity coefficient of 0.

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