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Record W4414586936 · doi:10.33423/jabe.v27i4.7877

Exponential Growth Bias in an Inflationary World

2025· article· en· W4414586936 on OpenAlexvenueno aff
Bryan Foltice

Bibliographic record

VenueJournal of Applied Business and Economics · 2025
Typearticle
Languageen
FieldSocial Sciences
TopicIncome, Poverty, and Inequality
Canadian institutionsnot available
Fundersnot available
KeywordsInflation (cosmology)Sample (material)Domain (mathematical analysis)Sample size determinationTest (biology)Exponential function

Abstract

fetched live from OpenAlex

This paper examines the exponential growth bias (EGB), both compound savings questions and in a domain relevant to household finance: inflation-based questions. Here, we test a broad-based sample of 354 adults living in the US initially on estimates for future compound savings and future prices after inflation over time. Here, we find significant EGB in both domains with and without calculators, with significantly higher bias sizes in the inflation questions. After the initial results, each participant completed a short 5 to 10-minute tutorial designed to teach them about EGB. We split the overall participants into two random learning groups: One group was shown how to use interactive charts while the other group learned the formal formula. While we do not find any significant differences of improvements between the two learning groups, we find significantly large decreases in bias sizes in both savings and inflation questions after the tutorial, with and without a calculator, particularly for those who did not know how to make the correct calculation before the tutorial.

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)0.005
metaresearch head score (Gemma)0.039
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.026

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.039
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.001
Scholarly communication0.0010.002
Open science0.0000.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0030.000

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 head0.039
GPT teacher head0.285
Teacher spread0.245 · 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
Published2025
Admission routes1
Has abstractyes

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