When the quantity demanded has increased at every price, it might be because the price of a complementary good has decreased.
This are goods that are mostly bought together.
The use of one is dependent of the other such that the consumer have to buy the two.
When the price of one is decreasingly it will complement for the increase in the other products.
Therefore, When the quantity demanded has increased at every price, it might be because the price of a complementary good has decreased.
Learn more on complementary goods below,
https://brainly.com/question/4025675
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