# US Dollar The US dollar is the currency of the United States and acts as a [reserve currency](reserve-currency.md) for international commerce. ## Properties The dollar is a [currency](currency.md). The dollar is not a [speculative](speculation.md) investment. The dollar is [inflationary](inflationary.md). The dollar has no [fundamental value](fundamental-value.md). The dollar has no [use value](use-value.md). The dollar has no [income-cashflows](income-cashflows.md). The dollar has a [present-value](present-value.md) of zero. The dollar has a [terminal-value](terminal-value.md) of zero. The dollar is a [non-productive](productive-asset.md) investment. The dollar is not a [security](security.md). The dollar is issued by a [central banks](central-banks.md).