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CA Foundation · Business Economics · International Trade

Under the Ricardian model, India and Japan trade two goods, and the domestic opportunity cost of 1 unit of steel is 2 units of fabric in India and 4 units of fabric in Japan. Which international exchange ratio (fabric per unit of steel) would let both countries gain from trade?

An exchange ratio of 3 fabric per unit of steel lets both gain. It lies between the domestic opportunity costs of 2 in India and 4 in Japan. India receives more fabric per steel than at home, and Japan pays less than at home.

  1. A1.5
  2. B2
  3. C3Correct
  4. D5

Explanation

Both countries gain only if the trade ratio lies strictly between the domestic opportunity costs, 2 and 4. India exports steel and needs more than 2 fabric per steel; Japan imports steel and pays less than 4. A ratio of 3 fits. A ratio of 1.5 or 5 leaves one country worse off, and 2 gives India no gain.

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