On monotone completion of risk markets: Limit results for incomplete risk markets

Fuente: arXiv
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Auteurs principaux: Khajepour, Iman, Pritchard, Geoffrey, Ralph, Danny, Zakeri, Golbon
Format: Preprint
Publié: 2025
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author Khajepour, Iman
Pritchard, Geoffrey
Ralph, Danny
Zakeri, Golbon
author_facet Khajepour, Iman
Pritchard, Geoffrey
Ralph, Danny
Zakeri, Golbon
contents We consider a competitive market with risk-averse participants. We assume that agents' risks are measured by coherent risk measures introduced by Artzner et al. (1999). Fundamental theorems of welfare economics have long established the equivalence of competitive equilibria and system welfare optimization (see, e.g., Samuelson (1947)). These have been extended to the case of risk-averse agents with complete risk markets in Ralph and Smeers (2015). In this paper, we consider risk trading in incomplete markets and introduce a mechanism to complete the market iteratively while monotonically enhancing welfare.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18436
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On monotone completion of risk markets: Limit results for incomplete risk markets
Khajepour, Iman
Pritchard, Geoffrey
Ralph, Danny
Zakeri, Golbon
Optimization and Control
Risk Management
We consider a competitive market with risk-averse participants. We assume that agents' risks are measured by coherent risk measures introduced by Artzner et al. (1999). Fundamental theorems of welfare economics have long established the equivalence of competitive equilibria and system welfare optimization (see, e.g., Samuelson (1947)). These have been extended to the case of risk-averse agents with complete risk markets in Ralph and Smeers (2015). In this paper, we consider risk trading in incomplete markets and introduce a mechanism to complete the market iteratively while monotonically enhancing welfare.
title On monotone completion of risk markets: Limit results for incomplete risk markets
topic Optimization and Control
Risk Management
url https://arxiv.org/abs/2504.18436