For example, if the price of coffee increases, the quantity demanded for coffee stir sticks drops as consumers are drinking less coffee and need to purchase fewer sticks. In the formula, the numerator (quantity demanded of stir sticks) is negative and the denominator (the price of coffee) is positive.Click to see full answer. Beside this, what is cross elasticity of demand?In economics, the cross elasticity of demand or cross-price elasticity of demand measures the responsiveness of the quantity demanded for a good to a change in the price of another good, ceteris paribus.Likewise, how do you interpret cross price elasticity? A positive cross-price elasticity value indicates that the two goods are substitutes. For substitute goods, as the price of one good rises, the demand for the substitute good increases. For example, if the price of coffee increases, consumers may purchase less coffee and more tea. One may also ask, what are the uses of cross elasticity of demand? Cross elasticity can be used by a businessman (producer) to predict the future demand of his product in case when he has the idea of probable future price of substitute or complementary goods.Why is cross price elasticity of demand important? Cross Price Elasticity of Demand Definition For businesses, XED is an important strategic tool. This elasticity measure can help determine whether or not it is a good move to increase or decrease selling prices, or to substitute one product for another to generate greater revenues.