Explain 3 factors that will determine whether the demand for a good or service is price elastic or price inelastic.

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The price elasticity of demand refers to how sensitive the quantity demanded of a good or service is to changes in its price. Several factors can determine whether demand is price elastic or price inelastic. Here are three key factors:

  1. Availability of Substitutes:

    • If a good or service has many close substitutes, its demand is likely to be more price elastic. For example, if the price of butter rises, consumers can easily switch to margarine, leading to a significant decrease in the quantity demanded of butter. Conversely, in the case of goods with few or no substitutes (like insulin for diabetics), demand tends to be price inelastic since consumers have no alternative and will continue to purchase the product even at higher prices.
  2. Necessity vs. Luxury:

    • Goods that are considered necessities (such as basic food items, gas for heating, or essential medications) generally have inelastic demand. This means that even if the price rises, consumers will still purchase these goods because they are essential for daily living. On the other hand, luxury items (such as high-end electronics, designer clothing, or vacations) tend to have more elastic demand since consumers can forgo these purchases or delay them when prices rise.
  3. Proportion of Income Spent on the Good:

    • The amount of income consumers spend on a good relative to their total income can impact its price elasticity. If a good accounts for a large portion of a consumer's budget (like a car or rent), demand tends to be more elastic. A price increase will lead consumers to reconsider their purchase. Conversely, if the good accounts for a small portion of the budget (like salt or matches), demand is likely to be inelastic, as price changes will have a minimal impact on overall spending and consumption.

These factors highlight how consumer behavior varies depending on the nature of the good or service in relation to price changes, leading to different levels of elasticity in demand.

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