Implied liquidity: towards stochastic liquidity modelling and liquidity trading

Abstract

In this paper the authors introduce the new concept of implied liquidity on the basis of the recent developed two-way price theory (conic finance). Implied liquidity isolates and quantifies in a fundamental way liquidity risk in financial markets. It is shown on real market option data on the major US indices how liquidity dried up in the troubled year end of 2008. These investigations open the door to stochastic liquidity modeling, liquidity derivatives and liquidity trading.