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questions. 1. The Ricardian model presumes a single production factor called labor. Which of the following is correct regarding this production factor? A) labor is perfectly immobile between industries within a country. B) labor is perfectly mobile between industries within a country. C) labor is perfectly mobile between countries. D) labor is perfectly mobile both between industries and between industries. 2. Perfect competition is presumed in the Ricardian model. Therefore: A) au producs priemst al arginal cost B) any products price must exceed its marginal cost. C) any products price must be less than its marginal cost. D) any producer can command market power.
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Answer #1

Ans. 1 B) labor is perfectly mobile between industries within a country

In the Ricardian model, it presumes that a single production factor that is labor and labor is perfectly mobile between industries within a country and immobile between countries. Labor can easily reallocate without additional cost between industries within a country but cannot move between countries because of the difference in labor productivity.

Note: in this question in D part might be a printing mistake. there will be answered like between countries in the second portion of answer otherwise this option will also correct if both between industries written. please check.

Ans. 2. A) any product's price must equal its marginal cost

As perfect competition is presumed in the Ricardian model, any product's price must equal its marginal cost because firms are assumed to maximize profit.

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