# Liquidity
Liquidity is the state of [assets](assets.md) being liquid, or the ability to easily turn the assets or investments into [currency](currency.md) by finding a buyer for the asset on a [market.](market.md)

The inability to find a buyer for an asset makes the asset illiquid.

## References
1. Grinold, Richard C., and Ronald N. Kahn. Active portfolio management: Quantitative theory and applications. Probus, 1995.
1. Wilmott, Paul. Paul Wilmott introduces quantitative finance. John Wiley & Sons, 2007.