Final answer:
The gains from trade that benefit all nations include faster economic growth, increased political stability, and greater world output.
Step-by-step explanation:
The gains from trade that benefit all nations include faster economic growth, increased political stability, and greater world output. Faster economic growth can be achieved through increased trade as it allows countries to specialize in producing goods and services that they have a comparative advantage in. Increased political stability can be a result of international agreements that serve as a counterweight to domestic special interests and prevent protectionist measures. Greater world output is a result of reductions in trade barriers and improved transportation and communication, which expand markets and allow countries to access a wider range of products and resources.