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Record W4409924942 · doi:10.1257/pol.20230653

Show Me the Money! A Field Experiment on Electric Vehicle Charge Timing

2025· article· en· W4409924942 on OpenAlexaff
Megan R. Bailey, David P. Brown, Blake Shaffer, Frank A. Wolak

Bibliographic record

VenueAmerican Economic Journal Economic Policy · 2025
Typearticle
Languageen
FieldEngineering
TopicElectric Vehicles and Infrastructure
Canadian institutionsUniversity of AlbertaUniversity of Calgary
Fundersnot available
KeywordsElectric fieldCharge (physics)PhysicsEconomicsElectrical engineeringEnvironmental scienceEngineering

Abstract

fetched live from OpenAlex

We use a field experiment to measure the effectiveness of financial incentives to shift the timing of electric vehicle (EV) charging. EV owners respond strongly to financial incentives, reducing charging during peak hours by 49 percent by shifting to off-peak hours. In contrast, a prosocial information treatment has no discernible effect. When financial incentives are removed, charge timing reverts to pre-intervention behavior, reinforcing that “money matters.” Our findings highlight the substantial flexibility of EV charging compared to other forms of electricity demand. Such flexibility has the potential to greatly reduce future electric system costs arising from a rapidly decarbonizing transportation sector. (JEL C93, D12, D91, L92, L94, Q48)

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)0.003
metaresearch head score (Gemma)0.012
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Randomized trial · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.019
Threshold uncertainty score0.065

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.012
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0010.001
Scholarly communication0.0010.002
Open science0.0010.001
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0190.001

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 head0.005
GPT teacher head0.236
Teacher spread0.231 · 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 designRandomized trial
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

Citations9
Published2025
Admission routes1
Has abstractyes

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Same venueAmerican Economic Journal Economic PolicySame topicElectric Vehicles and InfrastructureFrench-language works237,207