Can history resolve factor investors’ p-hacking questions?
Quants seek reassurance in the far distant past
The economist Campbell Harvey showed back in 2017 that many of the proliferation of factor strategies – famously dubbed the Factor Zoo – were statistically dubious.
Ever since, the question of so-called p-hacking has hung over the field. P-hacking is when quants formulate strategies that work in backtests but depend on chance patterns in history that fail to repeat.
Recent underperformance has further fed concerns. Three of the core equity factor strategies – momentum, value and size – trailed the
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 Our take
Another post-Libor rate aims to clear Iosco bar
After two rivals were slapped down by the benchmark overseer last year, will Axi fare differently?
Nvidia is growing up. It’s not settling down
Chip maker is a mega cap that doesn’t act like one
FX forwards dealers face added challenges in P&L analysis
Mark-out tools for forwards and swaps trading may not be a panacea
Insurance double-hatters like Apollo can expect more scrutiny
Regulators are homing in on conflicts of interests at private-equity-owned insurers
Podcast: Lorenzo Ravagli on why the skew is for the many
JP Morgan quant proposes a unified framework for trading the volatility skew premium
Quants see promise in DeBerta’s untangled reading
Improved language models are able to grasp context better
Counterparty risk model links defaults to portfolio values
Fed’s Michael Pykhtin proposes using copula models to capture effects of margin calls on default risk
Does Basel’s internal loss multiplier add up?
As US agencies mull capital reforms, one regulator questions past losses as an indicator of future op risk
