The Political Consequences of the Covid-19 Crisis

Last registered on January 20, 2021


Trial Information

General Information

The Political Consequences of the Covid-19 Crisis
Initial registration date
June 25, 2020

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
June 26, 2020, 10:52 AM EDT

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

Last updated
January 20, 2021, 4:58 AM EST

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



Primary Investigator


Other Primary Investigator(s)

PI Affiliation
Banco de EspaƱa

Additional Trial Information

On going
Start date
End date
Secondary IDs
In this study, we plan to analyze the political and economic consequences of the unequal burden of the Covid-19 crisis across Spanish households. With this objective, we plan to conduct a number of large-scale online experiments conducted to a representative sample of the Spanish population. Spain is one of the most severely affected countries by the Covid-19 pandemic, both in terms of the public health crisis and the expected economic downturn.

We plan to focus on three main research questions. First, we will study how informing people about the economic crisis caused by the covid-19 pandemic affects beliefs and political attitudes. Second, we will study to what extent receiving information about policies that strengthen safety nets affects political attitudes. Third, we will study the interaction between these two issues. In particular, we will study how information about policies mediates on the effects of the economic crises on attitudes.
External Link(s)

Registration Citation

Martinez-Bravo, Monica and Carlos Sanz. 2021. "The Political Consequences of the Covid-19 Crisis." AEA RCT Registry. January 20.
Experimental Details


This study will conduct a number of survey experiments to a sample of 5,000 people in Spain during the last two weeks of June 2020. Individuals will be randomly assigned to receive information on the effects of Covid-19 in the economy and to receive information about new safety-net policies recently introduced in Spain.
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Trust in political institutions.

Assessment of the performance of the current government in managing the crisis.

Political preferences and polarization. Ideological and Affective polarization.

Support for Taxation and Redistribution.

Knowledge and support for the Guaranteed Minimum Income policy, which was recently adopted by the Spanish Government.

Self-assessment of emotional well-being.

(See the attached pre-analysis plan for details.)
Primary Outcomes (explanation)
(See the attached pre-analysis plan for details.)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
(See the attached pre-analysis plan for details.)
Experimental Design Details
Randomization Method
Individual-level randomization within strata, without replacement.
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
5,000 individuals
Sample size: planned number of observations
5,000 individuals
Sample size (or number of clusters) by treatment arms
5,000 individuals
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
Centro de Estudios Monetarios y Financieros (CEMFI)
IRB Approval Date
IRB Approval Number
Analysis Plan

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Post Trial Information

Study Withdrawal

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Is the intervention completed?
Data Collection Complete
Data Publication

Data Publication

Is public data available?

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials