Quantification of Risk in Classical Models of Finance

Alois Pichler and Ruben Schlotter

Papers from arXiv.org

Abstract: This paper enhances the pricing of derivatives as well as optimal control problems to a level comprising risk. We employ nested risk measures to quantify risk, investigate the limiting behavior of nested risk measures within the classical models in finance and characterize existence of the risk-averse limit. As a result we demonstrate that the nested limit is unique, irrespective of the initially chosen risk measure. Within the classical models risk aversion gives rise to a stream of risk premiums, comparable to dividend payments. In this context we connect coherent risk measures with the Sharpe ratio from modern portfolio theory and extract the Z-spread -- a widely accepted quantity in economics to hedge risk. The results for European option pricing are then extended to risk-averse American options, where we study the impact of risk on the price as well as the optimal time to exercise the option. We also extend Merton's optimal consumption problem to the risk-averse setting.

Date: 2020-04, Revised 2021-02
New Economics Papers: this item is included in nep-cfn and nep-rmg
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:2004.04397

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