MétaCan
Menu
← Back to cohort
Record W2241571928

Optimal Trading Mechanisms with Ex Ante Unidentified Traders

2004· preprint· fr· W2241571928 on OpenAlexaff
Hu Lu, Jacques Robert

Bibliographic record

VenueRePEc: Research Papers in Economics · 2004
Typepreprint
Languagefr
FieldEconomics, Econometrics and Finance
TopicEconomic theories and models
Canadian institutionsUniversité de MontréalUniversity of Ottawa
Fundersnot available
KeywordsEx-anteValuation (finance)MicroeconomicsWelfare economicsEconomicsMathematical economicsFinance
DOInot available

Abstract

fetched live from OpenAlex

Nous analysons les mécanismes optimaux d'échange dans un contexte où chaque participant possède quelques unités d'un bien à être échangé et pourrait être soit un acheteur, soit un vendeur, dépendant de la réalisation des valorisations qui sont de l'information privée des participants. D'abord, le concept de valeur virtuelle est généralisé aux agents qui ne sont pas ex ante identifiés comme acheteurs ou vendeurs; contrairement au cas où les agents sont bien identifiés, les valeurs virtuelles des agents dépendent0501ntenant du mécanisme d'échange et ne sont généralement pas monotones même si la distribution des valorisations est régulière. Nous montrons que les mécanismes optimaux d'échange, qui maximisent l'espérance de profit ou de gains d'échange d'un intermédiaire, sont complètement caratérisés par ces valeurs virtuelles. Le phénomène de discrimination incomplète (bunching), qui est ici spécifique aux agents non identifiés ex ante, va être une caractéristique générale dans les mécanismes optimaux. Nous montrons aussi que la règle de répartition aléatoire par laquelle les égalités sont brisées est0501ntenant un instrument important dans le design de ces mécanismes.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.007
metaresearch head score (Gemma)0.026
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.010
Threshold uncertainty score0.037

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0070.026
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0010.001
Science and technology studies0.0010.003
Scholarly communication0.0050.008
Open science0.0030.004
Research integrity0.0040.002
Insufficient payload (model declined to judge)0.0100.001

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 head0.047
GPT teacher head0.268
Teacher spread0.221 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
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

Citations0
Published2004
Admission routes1
Has abstractyes

Explore more

Same venueRePEc: Research Papers in Economics→Same topicEconomic theories and models→French-language works237,207→