For movement along the demand curve, from an old position to a new one, the price effect is quantifiable as

This question is incomplete, the options are missing. The options are the following:

A) The old price times the change in quantity.

B) The old price times the new quantity.

C) The new price times the change in quantity.

D) The old quantity times the change in price.

And the correct answer is the option D: The old quantity times the change in price.  

Explanation:

To begin with, the name of "Price Effect" refers to a concept known in economics as the situation where a consumer is affected by the change in the price that a good he plans to buy staying everything else constant. This effect is quantifiable as the old quantity times the change in price when we see the representation in a graphic due to the fact that when the demand curve moves the new position will be established by that new price that have affected the consumer given the same old quantity.

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