National currencies

National currencies are the official money issued and regulated by a country's government or central bank. They serve as a medium of exchange, a store of value, and a unit of account within that country. Examples include the US dollar, euro, and Japanese yen. Each currency has its own value, which can fluctuate based on economic conditions, policies, and global markets. They facilitate trade, save wealth, and enable governments to implement monetary policies. While they are primarily used domestically, many national currencies are also traded internationally in currency markets, influencing exchange rates and economic stability.