Affecting public support for economic policies

Last registered on September 27, 2022

Pre-Trial

Trial Information

General Information

Title
Affecting public support for economic policies
RCT ID
AEARCTR-0010121
Initial registration date
September 26, 2022

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
September 27, 2022, 11:58 AM EDT

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

Locations

Region

Primary Investigator

Affiliation
Max Planck Institute for Tax Law and Public Finance

Other Primary Investigator(s)

PI Affiliation
Ifo Institute
PI Affiliation
Ifo Institute and LMU Munich

Additional Trial Information

Status
In development
Start date
2022-09-28
End date
2023-07-31
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
This pre-analysis plan describes a follow-up survey experiment to a study registered as AEARCTR-0007596. In this pre-analysis plan, we describe a new survey experiment that builds on the findings from that previous survey experiment (conducted in 2021). The new survey experiment will cover 12,000 German respondents and include the “Efficiency” and the “Displacement” treatments. In addition, the new survey experiment will include a composite treatment combining these two treatments. Moreover, in addition to the main outcome question used in the 2021 survey to elicit attitudes towards the Berlin rent cap, the new survey will include an incentivized donation question and an open-ended question.
External Link(s)

Registration Citation

Citation
Dolls, Mathias, Paul Schüle and Lisa Windsteiger. 2022. "Affecting public support for economic policies." AEA RCT Registry. September 27. https://doi.org/10.1257/rct.10121-1.0
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
In a randomized survey experiment among a representative sample of 12,000 respondents in Germany, we will confront participants with different aspects of the housing market in Berlin, rent control and its consequences and subsequently elicit their attitudes towards the
Berlin rent cap (a rent control policy introduced in Berlin in 2020 and overturned by the Federal Constitutional Court in April 2021) .
Intervention Start Date
2022-09-28
Intervention End Date
2022-11-30

Primary Outcomes

Primary Outcomes (end points)
Support for rent control, incentivized outcome question (donation)
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Random provision of information about rent control, housing market and related topics to subgroups of the sample (see attached document)
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
12000
Sample size (or number of clusters) by treatment arms
3000
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Ethics Commission, Department of Economics, University of Munich
IRB Approval Date
2021-02-24
IRB Approval Number
2021-02
Analysis Plan

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