SW's per-seat revenue on the same 1,000-mile trip length was higher than that of every airline except ______.

Most people buy salt infrequently and in small quantities. Even a doubling of the price of salt is likely to result in a small decline in the quantity of salt demanded. Therefore

A) the price elasticity of demand for salt is greater than 1 (in absolute value). B) the demand for salt will be perfectly inelastic. C) salt is a normal good. D) the demand for salt is relatively inelastic.

Consumers who do not consistently discount the future over time behave in a fashion that is most consistent with ________

A) the theory of intertemporal choice B) the Keynesian theory of consumption C) the permanent income hypothesis D) the life-cycle hypothesis