multiple choice question\nwhich of the following is a determinant of the price elasticity of…

Brief Explanations:

The price - elasticity of demand measures how responsive the quantity demanded is to a change in price. Substitutability is a key determinant. If a good has many substitutes, consumers can easily switch to other goods when its price changes, making demand more elastic. Proportion of demand is not a standard determinant. Price is what changes and affects quantity demanded, not a determinant of elasticity. Supply levels affect the market - clearing price and quantity but are not determinants of the price elasticity of demand.

Answer:

Substitutability