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Contemporary Economics
Article . 2017 . Peer-reviewed
Data sources: Crossref
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Contemporary Economics
Article
License: CC BY
Data sources: UnpayWall
EconStor
Article . 2017
License: CC BY
Data sources: EconStor
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Scenario-based stress tests: are they painful enough?

Authors: Ellis, Colin;

Scenario-based stress tests: are they painful enough?

Abstract

Forecasts, models and stress tests are important tools for policymakers and business planners. Recent developments in these related spheres have seen greater emphasis placed on stress tests from a regulatory perspective, while at the same time forecasting performance has been criticized. Given the inter linkages between the two, similar limitations apply to stress tests as to forecasts, and should be borne in mind by practitioners. In addition, the recent evolution of stress tests, and in particular the increasing popularity of scenario-based approaches, raises concerns about how well shortcomings of the associated models are understood. This includes estimated stress cases relative to base cases – the degree of pain – that simple scenario modelling approaches engender. This paper illustrates this phenomenon using simulation techniques, and demonstrates that more extreme stress scenarios need to be employed in order to match the inference from simple value-at-risk approaches. Alternatively, complex modelling approaches can address this concern, but are not widely used to date. Some policymakers, however, seem to be aware of these issues, judging by the severity of some recent stress scenarios.

Related Organizations
Keywords

G17, Stress test, ddc:330, E37, Scenarios, Risk modelling, G32, VaR

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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