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Record W2149187060

Which Volatility Model for Option Valuation

2002· preprint· en· W2149187060 on OpenAlexaff
Peter Christoffersen, Kris Jacobs

Bibliographic record

VenueRePEc: Research Papers in Economics · 2002
Typepreprint
Languageen
FieldEconomics, Econometrics and Finance
TopicStochastic processes and financial applications
Canadian institutionsMcGill University
Fundersnot available
KeywordsEconomicsVolatility (finance)EconometricsVolatility clusteringValuation of optionsLeverage effectValuation (finance)Capital asset pricing modelFinancial economicsAutoregressive conditional heteroskedasticityFinance
DOInot available

Abstract

fetched live from OpenAlex

Caractériser les dynamiques des rendements d'actifs à l'aide de modèles de volatilité est un champ important de la finance empirique. La littérature dans ce domaine privilégie des spécifications de volatilité plutôt complexes dont la performance relative est généralement estimée par leur vraisemblance à partir de séries chronologiques de rendements d'actifs. Cet article compare plusieurs modèles de volatilité selon un critère différent, utilisant les rendements et prix d'options dans une mesure neutre au risque et de probabilité physique. Nous estimons la performance relative des différents modèles en évaluant la fonction objective basée sur les prix d'options. Contrairement à l'inférence basée sur les rendements, nous trouvons que notre fonction objective basée sur les options favorise un modèle relativement parcimonieux. En particulier, lorsqu'elle est évaluée hors-échantillon, notre analyse favorise un modèle qui, outre le groupement de volatilités, ne permet qu'un effet de levier standard. Cette analyse empirique fait partie d'une littérature en plein essor qui suggère que l'évaluation des prix d'options en temps discret, lorsque la volatilité varie dans le temps, est pratique et riche en enseignements.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.946
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.120
GPT teacher head0.329
Teacher spread0.208 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations15
Published2002
Admission routes1
Has abstractyes

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