What it is:
How it works/Example:
For example, in the United States, the national currency is the dollar. In Britain, the national currency is the pound.
Theoretically, anything can be , but coins and paper are the most generally accepted forms. In most cases, each country in the world has its own , but in many cases several countries use the same (such as the euro or the U.S. dollar). A country's government (usually its central bank -- the Federal Reserve in the United States, for example) designs and manufactures that country's .
Why it matters:
A country's national
This isn't to say that a national is the only forms of viable in a country. Quite often, companies use of their own as to acquire other companies, and anybody who has ever watched a crime show knows that cigarettes can buy a in prison.