Understanding the Law of Demand

The video explores the law of demand, explaining why demand curves slope downward. It covers the substitution effect, where consumers switch to cheaper alternatives, and the income effect, where lower prices increase purchasing power. Additionally, it discusses decreasing marginal utility, where the value of additional units decreases as consumption increases.

What does the law of demand suggest about the relationship between price and quantity demanded?

• As price increases, quantity demanded decreases.

• Price and quantity demanded are unrelated.

• As price decreases, quantity demanded decreases.

• As price increases, quantity demanded increases.

What is typically represented on the vertical axis of a demand curve graph?

• Quantity

• Supply

• Price

• Time

How does the substitution effect influence consumer behavior?

• Consumers switch to a cheaper alternative when the price of a good decreases.

• Consumers buy less of a good as its price decreases.

• Consumers buy more of a good as its price increases.

• Consumers ignore price changes and buy the same quantity.

If the price of candy drops from $4 to $2, what might consumers do according to the substitution effect?

• Buy more fruit instead of candy.

• Buy more candy instead of fruit.

• Buy the same amount of candy.

• Stop buying candy altogether.

What is the income effect in the context of demand?

• The change in quantity demanded due to a change in consumer income.

• The effect of price changes on consumer income.

• The change in consumer preferences over time.

• The effect of income on supply.

How does a decrease in the price of a good affect consumer purchasing power?

• It increases purchasing power.

• It decreases purchasing power.

• It makes consumers indifferent to price changes.

• It has no effect on purchasing power.

What does decreasing marginal utility imply about additional units of a good?

• Each additional unit has no effect on satisfaction.

• Each additional unit provides less satisfaction.

• Each additional unit provides the same satisfaction.

• Each additional unit provides more satisfaction.

Why might the first unit of a good provide more utility than subsequent units?

• Because the first unit is of higher quality.

• Because consumers are less interested in the first unit.

• Because the first unit is often cheaper.

• Because the first unit satisfies the most urgent need.

What happens to marginal utility as more of a good is consumed?

• It fluctuates randomly.

• It increases.

• It remains constant.

• It decreases.

Which of the following is NOT a reason for a downward sloping demand curve?

• Substitution effect

• Increasing marginal utility

• Income effect

• Decreasing marginal utility