標題: For a good that is a necessity, [打印本頁] 作者: ycknews 時間: 2020-3-17 16:22 標題: For a good that is a necessity, For a good that is a necessity,
demand tends to be inelastic.
quantity demanded tends to respond substantially to a change in price.
its price elasticity equals one.
the law of demand often does not apply.
