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Record W2884786062 · doi:10.1515/snde-2017-0064

A nonlinear model of asset returns with multiple shocks

2018· article· en· W2884786062 on OpenAlex
Hannu Kahra, Vance L. Martin, Saikat Sarkar

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueStudies in Nonlinear Dynamics and Econometrics · 2018
Typearticle
Languageen
FieldEconomics, Econometrics and Finance
TopicFinancial Markets and Investment Strategies
Canadian institutionsMount Allison University
Fundersnot available
KeywordsEconometricsNonlinear systemEconomicsAsset (computer security)Sign (mathematics)Contrast (vision)Class (philosophy)Financial economicsMathematicsComputer science

Abstract

fetched live from OpenAlex

Abstract A nonlinear model of asset returns allowing for multiple shocks is specified. The nonlinear features of the model are demonstrated graphically using a 3-dimensional diagram referred to as the mean impact surface. A new class of nonlinearity tests is also developed which is compared with existing testing methodologies. Applying the framework using excess returns on US and world equities the empirical results provide strong statistical evidence that domestic and foreign shocks have nonlinear effects on expected returns in the US with the effects being determined by the sign and the size of shocks. In contrast, the effects on world expected returns from shocks in the US and the world are found to react more smoothly. The empirical nonlinearities identified are also shown to be robust to alternative choices of risk factors and distributional assumptions.

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.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.966
Threshold uncertainty score0.994

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
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 head0.065
GPT teacher head0.261
Teacher spread0.196 · 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