
My kingdom for the right copula
Copulas can still deliver if chosen with due attention to intuition and data, says quant fund chair
Non-linear correlations pervade financial markets, yet an accurate representation of these dependencies remains out of reach for many in the industry and academia. The reason is excessive reliance on elegant mathematics at the expense of intuition and data. But copulas, the standard mathematical tool for dealing with non-linear correlations, can still deliver if selected with care.
Contrary to what Gaussian statistics would have us believe, non-linear correlations between financial assets are
Only users who have a paid subscription or are part of a corporate subscription are able to print or copy content.
To access these options, along with all other subscription benefits, please contact info@risk.net or view our subscription options here: http://subscriptions.risk.net/subscribe
You are currently unable to print this content. Please contact info@risk.net to find out more.
You are currently unable to copy this content. Please contact info@risk.net to find out more.
Copyright Infopro Digital Limited. All rights reserved.
As outlined in our terms and conditions, https://www.infopro-digital.com/terms-and-conditions/subscriptions/ (point 2.4), printing is limited to a single copy.
If you would like to purchase additional rights please email info@risk.net
Copyright Infopro Digital Limited. All rights reserved.
You may share this content using our article tools. As outlined in our terms and conditions, https://www.infopro-digital.com/terms-and-conditions/subscriptions/ (clause 2.4), an Authorised User may only make one copy of the materials for their own personal use. You must also comply with the restrictions in clause 2.5.
If you would like to purchase additional rights please email info@risk.net
More on Comment
Start planning for post-quantum risks now
Next-gen quantum computers will require all financial firms to replace the cryptography that underpins cyber defences, writes fintech expert
Cool heads must guide financial regulation of climate risk
Supervisors can’t simply rely on ‘magical thinking’ of market discipline, says Sergio Scandizzo
Op risk data: Two Sigma pays the price for model mess
Also: KuCoin’s AML fail, Angola bribes bite Trafigura, and Trump’s green scepticism. Data by ORX News
How a serverless risk engine transformed a digital bank
Migrating to the cloud permitted scalability, faster model updates and a better team structure
Op risk data: Mastercard schooled in £200m class action
Also: Mitsubishi copper crunch, TD tops 2024 op risk loss table. Data by ORX News
Transforming stress-testing with AI
Firms can update their stress-testing capability by harnessing automated scenario generation, says fintech advocate
Op risk data: Santander in car crash of motor-finance fail
Also: Macquarie fined for fake metals trade flaws, Metro makes AML misses, and Invesco red-faced over greenwashing. Data by ORX News
‘It’s not EU’: Do government bond spreads spell eurozone break-up?
Divergence between EGB yields is in the EU’s make-up; only a shared risk architecture can reunite them