The comparative advantage theory, developed by David Ricardo, argues that countries should specialize in producing and exporting goods in which they have a comparative advantage, even if they have an absolute advantage in producing other goods.

A country's comparative advantage is determined by a combination of factors, including natural resources, labor costs, technology, and other factors that affect the efficiency of production.

The impact of international trade on economic growth depends on a variety of factors, including the size of the country, the composition of its exports and imports, and the policies that are in place to promote trade.

Resource flows between countries are caused by a combination of factors, including differences in resource endowments, differences in technology, differences in demand, and other factors that affect the relative scarcity of resources.

Resource flows between countries can take the form of goods and services, capital, labor, or a combination of these.

International trade can lead to increased economic growth, job creation, and lower prices for consumers.

International trade can lead to job losses, increased inequality, and environmental damage, if it is not managed properly.

Free trade agreements are agreements between two or more countries that reduce or eliminate tariffs and other barriers to trade.

The World Trade Organization (WTO) is an international organization that regulates trade between countries, provides a forum for negotiating trade agreements, and provides a dispute settlement mechanism for trade disputes.

A tariff is a tax on imports, while a quota is a limit on the quantity of imports.

Tariffs increase prices for consumers by increasing the cost of imported goods.

Quotas increase prices for consumers by reducing the supply of imported goods.

The impact of international trade on the environment depends on a variety of factors, including the types of goods and services that are traded, the production methods that are used, and the policies that are in place to protect the environment.

International trade can be made more sustainable by reducing tariffs and quotas, promoting the trade of environmentally friendly goods and services, and investing in green technology.

The future of international trade is uncertain. It is possible that it will continue to grow, decline, or remain the same. The outcome will depend on a variety of factors, including the policies that are in place, the state of the global economy, and the technological changes that occur.