Equity and Efficiency - An experimental investigation

Last registered on March 27, 2024
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Pre-Trial

Trial Information

General Information

Title
Equity and Efficiency - An experimental investigation
RCT ID
AEARCTR-0012688
Initial registration date
December 13, 2023

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
December 20, 2023, 12:58 PM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
March 27, 2024, 9:58 AM EDT

Last updated is the most recent time when changes to the trial's registration were published.

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Primary Investigator

Name
Luca Panaccione
Affiliation
Sapienza University of Rome - Department of Economics and Law
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Other Primary Investigator(s)

PI Name
Daniela Di Cagno
PI Affiliation
Luiss Guido Carli
Contact Investigator
PI Name
Maria Luigia Signore
PI Affiliation
Sapienza University of Rome
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Additional Trial Information

Status
In development
Start date
2023-12-14
End date
2024-05-31
Keywords
Behavior, Lab
Additional Keywords
JEL code(s)
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
We study choices about pie sharing in dyadic interaction with varying responder veto power. We consider a condition with fixed pie size (baseline) and two conditions with endogenously determined pie size (high and low efficiency loss conditions). We analyse baseline and efficiency loss conditions within subjects. We vary the order of conditions and the extent of the efficiency loss between subjects. We use the strategy vector method to elicit subjects' choices.
External Link(s)

Registration Citation

Citation
Di Cagno, Daniela, Luca Panaccione and Maria Luigia Signore. 2024. "Equity and Efficiency - An experimental investigation." AEA RCT Registry. March 27. https://doi.org/10.1257/rct.12688-1.1
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2023-12-14
Intervention End Date
2024-05-31

Primary Outcomes

Primary Outcomes (end points)
Individual choices regarding pie sharing
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We consider a condition with fixed pie size (baseline) and two conditions with endogenously determined pie size (high and low efficiency loss conditions). We use the strategy vector method to elicit subjects' choices. Subjects choose the percentage share of the pie size for themselves in both roles of the dyadic interaction.
Experimental Design Details
Not available
Randomization Method
Randomisation by computer. At the end of each session, participants are randomly matched in couples and randomly assigned to one role for final payment.
Randomization Unit
After making their choices via the strategy method for both roles of the dyadic interaction, at the end of the session each participant is randomly matched with another one and randomly assigned to one role. Then, one phase is randomly selected for payment.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
1 pool of subjects registered for experiments via Orsee, from Luiss faculty of Economics, Law, and Political Science
Sample size: planned number of observations
200 students (expected)
Sample size (or number of clusters) by treatment arms
30 students per session (expected), i.e. 60 students per treatment.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Luiss Guido Carli
IRB Approval Date
2023-12-21
IRB Approval Number
N/A
Analysis Plan