这题的问题是：如果ZF加税，没有指明加在谁身上，是移动需求还是移动供给还是都移动呢？

Assume that this firm operates in aconstant-cost industry and has reached long-run equilibrium. If the government

imposes a per-unit tax of $2, indicate what will happen to the firm'sprofit-maximizing output in the long run.  No

change in output

非常感谢！