Answer:
a decrease in the price of a kayak
Explanation:
A decrease in the price of kayaks leads to a downward movement along the supply curve for kayaks and not a shift of the supply curve.
An increase in the costs of materials to build a kayak and an increase in the taxes on kayaks increases cost of production and discourages production. Therefore, supply would fall. The supply curve would shift to the left as a result.
A decrease in the number of sellers of kayaks would reduce sipply and supply would fall. The supply curve would shift to the left as a result.
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