Which of the following is/are the reason for using average or arc elasticity to measure th
Which of the following is/are the reason for using average or arc elasticity to measure the elasticity of demand?
[A]Most demand curves are shaped like an arc.
[B]It measures the elasticity of the entire demand curve, not just over a price range.
[C]Because when a single point is chosen to calculate elasticity, its value will change depending on the base, or the starting point.
[D]Price elasticity never varies along a straight-line demand curve.