Q.What do you mean by substitutes? Give examples of two goods which are substitutes of each other.
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Start your 14-day free trial to unlock the full solution →Substitute goods are those that can replace each other in consumption because they satisfy the same want or need. When the price of one rises, demand for the other increases. Classic examples: tea and coffee, or Pepsi and Coca-Cola.
The concept of substitutes
Two goods are substitutes when they serve essentially the same purpose for the consumer. The defining feature is that they compete for the same slot in your consumption basket. If you want a hot morning beverage, tea and coffee both do the job. If one becomes more expensive or unavailable, you can switch to the other without much loss of satisfaction.
The economic signature of substitute goods shows up in how consumers respond to price changes. When the price of good rises, people naturally look for cheaper alternatives. If good is a substitute, its demand will increase even though nothing about itself has changed—no change in its own price, quality, or availability. This cross-relationship is what defines substitutability.
For substitutes, the cross-price elasticity of demand is positive:
The strength of substitutability varies. Perfect substitutes are interchangeable in every respect (say, two brands of identical salt), so consumers switch completely based on price. Most real-world substitutes are imperfect—tea and coffee taste different, so some people have strong preferences—but they still exhibit the key property: a price increase in one shifts some consumers toward the other.
Examples of substitute goods
Tea and Coffee: Both are hot beverages consumed for refreshment and the caffeine boost. If coffee prices spike due to a poor harvest in Brazil, many consumers will buy more tea instead. The two goods compete directly in the morning-beverage market. …
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