The international trade theory put forward by American economist Krugman is (). A. theory of absolute advantage B. Comparative advantage theory

There are many new trends in the development of international trade that can't be explained by the theory of Huxler-Olin. Krugman, an American economist, put forward the trade theory of economies of scale to explain the two-way trade phenomenon between similar resource reserve countries and similar industrial products, which formed the contemporary trade theory.