In the specific factors model, the effects of trade on welfare are ________ for mobile factors, ________ for fixed factors used to produce the exported good, and ________ for fixed factors used to produce the imported good.
选项:
A:ambiguous; positive; negative;
B:positive; positive; positive;
C:ambiguous; negative; positive;
D:positive; ambiguous; ambiguous
发布时间:2024-05-09 00:21:54