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Non-Crossing Dual Neural Network: Joint Value at Risk and Conditional Tail Expectation estimations with non-crossing conditions

Xenxo Vidal-Llana (), Carlos Salort Sánchez (), Vincenzo Coia () and Montserrat Guillen ()
Additional contact information
Xenxo Vidal-Llana: Universitat de Barcelona. Gran Via de les Corts Catalanes 585. 08007 Barcelona, Spain.
Carlos Salort Sánchez: Universitat de Barcelona. Gran Via de les Corts Catalanes 585. 08007 Barcelona, Spain.
Vincenzo Coia: University of British Columbia. West Mall 2329. Vancouver, BC Canada.
Montserrat Guillen: Gran Via de les Corts Catalanes 585. 08007 Barcelona, Spain.

No 202215, IREA Working Papers from University of Barcelona, Research Institute of Applied Economics

Abstract: When datasets present long conditional tails on their response variables, algorithms based on Quantile Regression have been widely used to assess extreme quantile behaviors. Value at Risk (VaR) and Conditional Tail Expectation (CTE) allow the evaluation of extreme events to be easily interpretable. The state-of-the-art methodologies to estimate VaR and CTE controlled by covariates are mainly based on linear quantile regression, and usually do not have in consideration non-crossing conditions across VaRs and their associated CTEs. We implement a non-crossing neural network that estimates both statistics simultaneously, for several quantile levels and ensuring a list of non-crossing conditions. We illustrate our method with a household energy consumption dataset from 2015 for quantile levels 0.9, 0.925, 0.95, 0.975 and 0.99, and show its improvements against a Monotone Composite Quantile Regression Neural Network approximation.

Keywords: Risk evaluation; Deep learning; Extreme quantiles. JEL classification: C31; C45; C52. (search for similar items in EconPapers)
Pages: 22 pages
Date: 2022-10, Revised 2022-10
New Economics Papers: this item is included in nep-big, nep-cmp, nep-ecm and nep-rmg
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