What information must economists have to estimate the price elasticity of demand? to estimate the price elasticity of demand, economists need to know a. the market price and quantity sold. b. the supply curve for a product. c. the demand curve for a product. d. total revenue. e. the change in priceprice.

C. the demand curve for a product.

Explanation:

Price elasticity of demand is a measure of the sensitivity of demand for a good or service to changes in the price of that product. We say that the price elasticity of demand is elastic when a percentage change in the price of this good has major impacts on demand. On the contrary, we say that the price elasticity of demand is inelastic when variations in the price of goods have little or no influence on demand.

Thus, to determine the value of elasticity, one must know what was the change in price and the change in quantity demanded. In a graph where price and quantity are the x and y axes, this can be obtained by observing changes in the demand curve points, which reflected the price change on one axis and the quantity change on another axis. Thus, it is sufficient to divide the percentage change in quantity demanded by the percentage change in price to find the price elasticity of demand.

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