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Leverage, liquidity, volatility, time horizon, and the risk of ruin
Author(s) -
Norland Erik,
Wilford D.Sykes
Publication year - 2002
Publication title -
review of financial economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.347
H-Index - 41
eISSN - 1873-5924
pISSN - 1058-3300
DOI - 10.1016/s1058-3300(02)00046-0
Subject(s) - hedge fund , sharpe ratio , market liquidity , leverage (statistics) , volatility (finance) , economics , liquidity risk , asset allocation , financial economics , business , actuarial science , finance , computer science , portfolio , machine learning
In order to meet their financial goals, investors, whether institutions or individuals, must make asset allocation decisions by balancing their return targets with their tolerance for volatility, their liquidity requirements, and time horizons. Yet even optimal mixes of investments with regard to time horizon, liquidity, and volatility levels are sometimes not adequate to achieve the return objectives of a firm or an individual. Using leverage scales up both returns and risks, introducing the potential for default. When using leverage, either as a fund manager or as an investor into a fund, fully understanding the potential for default is absolutely necessary. Using standard measures of risk and return can be very misleading. Sharpe ratios and information ratios can lead the investor into a state of unwarranted comfort with respect to the probability of losing more than is acceptable. Many traditional measures of risk do not deal with this problem correctly. This paper takes a barrier option theoretic approach to analyzing the potential for losses and the potential for the leveraged investor to be knocked‐out of his position even under circumstances of perfect knowledge of the end return. Thus, it demonstrates the necessity of a more rigorous approach to understanding the risk of any particular style of investment, particularly when dealing with hedge funds.