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A decrease in supply occurs when ______.A. there is a movement down along the supply curve which will occur when the price of the product decreases.B. there is a movement down along the supply curve which will occur when a variable other than the price of the product changed.C. the supply curve shifts left because the price of the product changed.D. the supply curve shifts left because a variable other than the price of the product changed.

Respuesta :

Answer:

The correct answer is option D.

Explanation:

A decrease in supply refers to the situation when there is a leftward shift in the supply curve due to a change in a variable other than the price of the product.  

An increase in the supply, on the other hand, is indicated by a rightward shift in the supply curve.  

A change in the price of the product causes the quantity supplied of the product to change. It is indicated by a movement on the same supply curve.  

The other factors that affect the overall supply of a product are the cost of production, level of technology, price of related goods, tax and subsidies.

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