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Risk allocation: the double face of financial derivatives

Corsi, Fulvio, Hosni, Hykel and Marmi, Stefano (2013) Risk allocation: the double face of financial derivatives. . London School of Economics and Political Science.

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Abstract

For the past two decades, derivatives provided the core financial innovation for risk-management and risk-sharing activities. However, in the aftermath of the 2007- 2008 crisis, derivatives have started to receive, partly for good reason, an increasingly bad press. The main purpose of this paper is to lay the foundations for a theoretical framework in which systemic risk is centrally involved in the assessment of derivative usage. We define an allocation to be efficient if it maximizes the Aggregate Sharpe ratio of the economy, i.e. if it allows to finance the maximum amount of productive investments while minimizing the overall systemic risk of the economy. We then say that a derivative is socially efficient if it leads to an allocation having higher Aggregate Sharpe ratio. We illustrate the applicability of our model by means of a qualitative analysis of three types of derivatives, namely Plain vanilla, Asset backed securities and Credit default-swaps.

Item Type: Monograph (Working Paper)
Official URL: http://www.lse.ac.uk/library/home.aspx
Additional Information: © 2013 The Authors
Divisions: CPNSS
Subjects: H Social Sciences > H Social Sciences (General)
Date Deposited: 01 Jul 2013 11:35
Last Modified: 13 Sep 2024 20:23
URI: http://eprints.lse.ac.uk/id/eprint/50971

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