Microeconomics 18th Edition by Campbell McConnell, Stanley Brue, Sean Flynn

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Indicate how each of the following would shift the (a) marginal-cost curve, (b) average-variable cost curve, (c) average-fixed-cost curve, and (d) average-total-cost curve of a manufacturing firm. In each case specify the direction of the shift.
a. A reduction in business property taxes
b. An increase in the nominal wages of production workers
c. A decrease in the price of electricity
d. An increase in insurance rates on plant and equipment
e. An increase in transportation costs