Responses to Changes in Demand Conditions: Interest-rate volatility:

Demand is perfectly inelastic when

A) shifts in the supply curve results in no change in price. B) the good in question has perfect substitutes. C) shifts of the supply curve result in no change in quantity demanded. D) shifts of the supply curve result in no change in the total revenue from the quantity sold.

Of the arguments for limiting trade, which one is the most appealing to economists?

A. protecting the jobs of citizens B. protecting the profits of companies C. preventing other countries from getting a comparative advantage by their use of child labor D. helping an industry that is in trouble