22 Which of the following would not cause the supply curve f

22 Which of the following would not cause the supply curve for gasoline to shift?

A change in the wages paid to gas station attendants.

A change in the number of gas stations.

A change in the incomes of drivers.

A change in the cost of refining oil.

Solution

Question 22

Shift in the supply curve generally happens when there is either change in cost of production or there is change in number of sellers within the market.

A change in the wages paid to gas station attendants or a change in the cost of refining oil will change the cost of production and thus would shift the supply curve.

A change in number of gas stations will change the number of sellers in the market and thus would shift the supply curve.

A change in the income of drivers will impact the demand for gasoline and thus will shift the demand curve and not the supply curve.

Hence, the correct answer is the option (3) [A change in the income of drivers].