what are the benefits of arc elasticity of demand 
the formula for arc elasticity of demand measures elasticity between two selected points by using a midpoint between the two points as a result it is particularly useful when there is a substantial change in price the bottom linearc elasticity is commonly used in economics to determine the percentage of change between the demand for goods and their price elasticity can be calculated in two ways price elasticity of demand and arc elasticity of demand the latter is more useful when there is a significant change in price 