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Record W1516842871

Do IPOs Underperform in the Long-Run? New Evidence from the Canadian Stock Market

2003· preprint· en· W1516842871 on OpenAlexaboutno aff
Maher Kooli, Jean-François L’Her, Jean‐Marc Suret

Bibliographic record

VenueÉrudit documents and data repository (Érudit Consortium, University of Montreal) · 2003
Typepreprint
Languageen
FieldEconomics, Econometrics and Finance
TopicFinancial Markets and Investment Strategies
Canadian institutionsnot available
Fundersnot available
KeywordsInitial public offeringEconometricsStock marketEconomicsStock (firearms)Financial economicsMonetary economicsGeography
DOInot available

Abstract

fetched live from OpenAlex

Nous mesurons dans la présente étude la performance des 141 émissions initiales effectuées au Canada de 1986 à 2000. Nous utilisons des portefeuilles de contrôle qui sont systématiquement rééquilibrés et réajustés pour les titres délistés, et qui ne tiennent compte des caractéristiques de taille et de ratio Book to Market. Les résultats varient peu suivant la méthode utilisée, qu'il s'agisse de la technique passive, des rendements anormaux cumulés en rendements calendaires (Calendar Time) ou non. Les coefficients alpha d'un modèle à trois facteurs inspirés de Fama et French sont utilisés également, sans différences notables. Toutefois, les résultats diffèrent fortement suivant le mode de pondération des portefeuilles. Nous mettons en évidence une sur performance lorsque des portefeuilles équipondérés sont formés, et une sous performance non significative lorsque des portefeuilles pondérés par la valeur boursière sont utilisés. Il semble que les émissions de sociétés financières, ainsi que celles qui appartiennent à des secteurs en croissance aient des performances supérieures à long terme. Les prévisions à long terme des analystes financiers ont une valeur informative quant aux performances futures des émissions initiales.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.324
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.001
Open science0.0020.001
Research integrity0.0000.001
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 head0.044
GPT teacher head0.226
Teacher spread0.182 · 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 designObservational
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

Citations4
Published2003
Admission routes1
Has abstractyes

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