提供公共物品的天然林资源是一种缺乏需求弹性的商品。
It is that public goods of offering is a merchandise for lacking demand elasticity.
芝加哥大学的Tomas Philipson称，就算价格高昂，对癌症药品的需求很大程度上还是缺乏价格弹性的。
Even when prices are high, demand for cancer drugs is largely inelastic, says Tomas Philipson of the University of Chicago.
最优商品税理论声称，应当对需求较缺乏弹性的商品课以较重的税收，以减少税收的额外负担。
The optimal tax theory holds that goods that lack flexibility in demand should be imposed more taxes in order to reduce additional burdens of tax income.
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