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Record W4407319896 · doi:10.1016/j.jmateco.2025.103096

Pareto efficiency and financial fairness under limited expected loss constraint

2025· article· en· W4407319896 on OpenAlex

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueJournal of Mathematical Economics · 2025
Typearticle
Languageen
FieldEconomics, Econometrics and Finance
TopicEconomic theories and models
Canadian institutionsUniversité Laval
FundersNatural Sciences and Engineering Research Council of CanadaUniversité Laval
KeywordsPareto principleEconomicsConstraint (computer-aided design)MicroeconomicsPareto optimalPareto efficiencyMulti-objective optimizationMathematical economicsMathematical optimizationMathematicsOperations management

Abstract

fetched live from OpenAlex

This paper investigates the Pareto efficiency and financial fairness in a collective asset allocation under a limited expected loss (LEL) constraint. By studying a constrained collective optimization problem, we characterize a constrained version of Pareto optimality, named LEL-Pareto optimality, within the admissible class of sharing rules. We propose a novel sharing rule, referred to as the LEL sharing rule, as an alternative to widely used proportional sharing rules. We rigorously demonstrate that every LEL sharing rule is LEL-Pareto-optimal and vice versa, thereby establishing a novel Borch-like criterion in a risk-constrained setting. Under the financial fairness condition, we derive a unique LEL sharing rule through a fixed-point iteration scheme by solving a highly non-linear system of Lagrange multipliers related to LEL-constrained optimization for collective utility and the financial fairness condition. Under mild conditions, we achieve global convergence and establish the existence of a unique fixed point of the iterative algorithm. Our numerical analysis affirms the theoretical findings and underscores the positive influence of the LEL constraint among prevalent proportional sharing rules, emphasizing the importance of risk control in practical scenarios.

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: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.138
Threshold uncertainty score0.801

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 studies0.0000.000
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 head0.020
GPT teacher head0.220
Teacher spread0.200 · 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