In this simple economic model with a closed economy there are three uses for GDP, (the goods and services it produces in a year). If Y is national income (GDP), then the three uses of C consumption, I investment, and G government purchases can be expressed as:National savings can be thought of as the amount of remaining money that is not consumed, or spent by government.ational savings should be split into private savings and public savings. A new term, T is taxes paid by consumers that goes directly to the government as shown here: (Y-T) is disposable income. (Y-T) less consumption (C) is private savings.
Canada is not part of the USA but Canada has border with the United States; however, Canada is a total different country with its own regulations.
No, Aruba doesn't belong to the United States of America. The country and the island are both considered parts of the North American continent. But Aruba is an autonomous part of the European Kingdom of the Netherlands.