Which statement best explains the law of demand?
A The quantity demanded by consumers increases as prices rise, then decreases as prices fall.
B The quantity demanded by consumers decreases as prices rise, then increases as prices fall.
C The quantity demanded by producers increases as prices ise, then decreases as prices fall.
D The quantity demanded by producers decreases as prices rise, then increases as prices fall.
The Correct Answer and Explanation is :
The correct answer is B: The quantity demanded by consumers decreases as prices rise, then increases as prices fall.
Explanation:
The law of demand is a fundamental principle in economics that describes the relationship between the price of a good or service and the quantity demanded by consumers. According to this law, there is an inverse relationship between price and quantity demanded: when prices increase, the quantity demanded tends to decrease, and when prices decrease, the quantity demanded tends to increase.
This relationship can be understood through the concept of substitution and income effects. When the price of a good rises, consumers may look for cheaper alternatives (substitutes), thus reducing their quantity demanded for the more expensive item. For example, if the price of coffee increases significantly, consumers may switch to tea or another beverage, leading to a decrease in the quantity of coffee demanded. Conversely, when the price of a good falls, consumers may feel more inclined to purchase it due to its affordability, leading to an increase in the quantity demanded. Using the coffee example again, if the price of coffee decreases, more consumers might choose to buy coffee instead of tea or other alternatives, thus increasing its quantity demanded.
The law of demand is typically represented graphically with a downward-sloping demand curve, which illustrates this inverse relationship. The downward slope indicates that as you move from left to right along the curve (increasing price), the quantity demanded decreases.
Understanding the law of demand is crucial for businesses and policymakers alike, as it helps them predict consumer behavior in response to price changes, ultimately informing pricing strategies and economic policy decisions.