If the price of textbooks rises and then students purchase fewer of them,then an economic model can show a cause-and-effect relationship only if which of the following conditions hold?

Question

Quizplus · Accepted Answer

A cause-and-effect relationship can only be shown if all other factors remain constant or controlled, so the only condition that needs to hold is that everything else is constant. If any of the other conditions listed (A, B, C, or E) were present, they could affect the relationship between the price of textbooks and the quantity demanded, and the cause-and-effect relationship could not be determined.

If the Price of Textbooks Rises and Then Students Purchase