International Trade question

monopoly case in international trade takes place when two large countries trade with each other. Since the two countries are both powerful, they have the power to affect the price. so, we say that the trade is of monoploy situation. (that is, not price taking market) but still, the terms of trade (TOT) lies between the two local production costs of the countries.
through trade, both countries are able to enjoy net gain due to improve in efficiency, namely production efficiency and consumption efficiency.