Which of the following is a major limitation of the simple Ricardian model of comparative advantage? 下列哪一项是简单比较优势模型的主要局限性?
A.
The model ignores the principle of diminishing marginal returns.该模型忽略了边际收益递减原理。
B.
The model recommends excessive governmental intervention in trade.该模型建议政府过度干预贸易。
C.
The outcome of the model suggested by Ricardo is a zero-sum game.模型的结果是零和博弈。
D.
The model is against the idea of engaging in free trade with nations.这种模式反对与各国进行自由贸易的想法。