Reforming social transfer withdrawal rates: Public support and labor supply reactions

Last registered on August 10, 2023
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Pre-Trial

Trial Information

General Information

Title
Reforming social transfer withdrawal rates: Public support and labor supply reactions
RCT ID
AEARCTR-0011871
Initial registration date
August 07, 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
August 10, 2023, 1:33 PM EDT

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

Locations

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Primary Investigator

Name
Lisa Windsteiger
Affiliation
University of Salzburg and ifo Institute
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Other Primary Investigator(s)

PI Name
Mathias Dolls
PI Affiliation
ifo Institute
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PI Name
Sarah Necker
PI Affiliation
ifo Institute and FAU Erlangen-Nuremberg
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PI Name
Julia Freuding
PI Affiliation
ifo Institute and FAU Erlangen-Nuremberg
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PI Name
Andreas Peichl
PI Affiliation
ifo Institute and LMU Munich
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Additional Trial Information

Status
In development
Start date
2023-08-11
End date
2024-08-31
Keywords
Behavior, Electoral, Welfare
Additional Keywords
survey experiment, vignette study, labor supply elasticity, reform acceptance
JEL code(s)
D10, H24, H30, H55, J22
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
By means of a randomized (online) survey experiment among a sample of 4000 respondents in Germany we want to examine two research questions related to state welfare benefit reforms (1) how does the population trade off different aspects of reforming welfare benefits and (2) how responsive are employees to modifications of the net wage resulting from changes of the tax system or adjustments of the gross wage?
In the first part of the survey, subjects participate in a vignette study examining the acceptance of reforms of the social transfer system. The second part is a survey experiment on labor supply preferences using between subjects treatment variation concerning the size, direction and cause of a (hypothetical) wage change.
External Link(s)

Registration Citation

Citation
Dolls, Mathias et al. 2023. "Reforming social transfer withdrawal rates: Public support and labor supply reactions." AEA RCT Registry. August 10. https://doi.org/10.1257/rct.11871-1.0
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
The survey consists of two parts. In the first part, subjects participate in a vignette study examining the acceptance of reforms of the social transfer system. Subjects are randomly assigned to one of two vignette experiments, which focus either on the “input” or “output” of reforms. The second part is a survey experiment on labor supply preferences using between subjects treatment variation concerning the size, direction and cause of a (hypothetical) wage change.
Intervention Start Date
2023-08-11
Intervention End Date
2024-08-31

Primary Outcomes

Primary Outcomes (end points)
labor supply elasticity, average marginal component effects for reform acceptance
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Vignette study (random design) to elicit AMCEs for reform acceptance, random confrontation with net wage increase or decrease for labor supply elasticity.
Experimental Design Details
Not available
Randomization Method
computer
Randomization Unit
individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
1
Sample size: planned number of observations
4000 individuals
Sample size (or number of clusters) by treatment arms
2000 (in vignette study)
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Ethics Commission, Department of Economics, University of Munich
IRB Approval Date
2023-07-03
IRB Approval Number
2023-11
Analysis Plan

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