In this example, the United States produces crude oil at a faster rate than any other country. This gives an absolute advantage to the United States, which means that the country would benefit from only focusing on the production of crude oil.
However, the availability and use of the resource might impact this advantage. The United States is a developed country, while country A is developing. This means that the United States needs more crude oil to support its industries. Potentially, this could mean that country A has an advantage, as it could export more of the oil it produces.
The Civil War expenses made the United States (US) became much more reliant on money in the late 1800s than in previous times. The need for money in funding the war paved the way for US to begin implementing income tax during 1862.
