Judicial Review, the supreme court was involved.
The capital resource is a tractor.
Southern states had slaves and Northern States was more about the industrial items. And even though northern states had less slaves they both had slaves. Richer soil in southern states allowed cropping which had to be farmed by slaves, weaker not good soil caused northern to use machines in others stuff so slaves where not need as much.
Comparative advantage refers to the ability of a party to produce a particular good or service at a lower opportunity cost than another. Even if one country has an absolute advantage in producing all goods, different countries could still have different comparative advantages
