中等ECON-MINT-017
The government pays sellers a per-unit subsidy. The supply curve that buyers see will:
A. Shift down (right) by the amount of the subsidy.✓ 答案
B. Shift up by the subsidy.
C. Stay still while demand shifts down.
D. Become perfectly inelastic.
解說
A per-unit subsidy lowers sellers’ net cost, so they accept a lower price from buyers. The supply curve shifts down, or right, by the subsidy per unit. Demand does not have to move for the subsidy to change equilibrium.