Foot-in-the-door strategy during a political canvassing in La Plata. Experimental Evidence from Argentina

Last registered on February 24, 2019

Pre-Trial

Trial Information

General Information

Title
Foot-in-the-door strategy during a political canvassing in La Plata. Experimental Evidence from Argentina
RCT ID
AEARCTR-0003920
Initial registration date
February 18, 2019

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
February 24, 2019, 7:48 PM EST

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

Locations

Primary Investigator

Affiliation
Universidad de San Andres

Other Primary Investigator(s)

PI Affiliation
Universidad de San Andres
PI Affiliation
Universidad Torcuato Di Tella

Additional Trial Information

Status
In development
Start date
2019-02-18
End date
2019-12-31
Secondary IDs
Abstract
It is our mainly aim to estimate direct causal effects of door-to-door combined with a foot-in-the-door technique during an extensive canvasing compared with previous studies. Our hypothesis is that a level of interaction between a neighbor and a candidate would promote gratitude or indebtedness related to the aspects of the relationship between the agents. In order to do so, we run an experiment in some localities of La Plata.
External Link(s)

Registration Citation

Citation
Ertola Navajas, Maria Gabriela, Roberto Ignacio Ertola Navajas and Martin A. Rossi. 2019. "Foot-in-the-door strategy during a political canvassing in La Plata. Experimental Evidence from Argentina." AEA RCT Registry. February 24. https://doi.org/10.1257/rct.3920-1.0
Former Citation
Ertola Navajas, Maria Gabriela, Roberto Ignacio Ertola Navajas and Martin A. Rossi. 2019. "Foot-in-the-door strategy during a political canvassing in La Plata. Experimental Evidence from Argentina." AEA RCT Registry. February 24. https://www.socialscienceregistry.org/trials/3920/history/42039
Experimental Details

Interventions

Intervention(s)
The intervention has two different parts: specific political publicity that aims the candidate to be known by everyone in the neighborhood and a door-to-door canvassing which main objective is to establish a bond with the voter and maintain the link until the day of general elections at least.
Intervention (Hidden)
The intervention has two different parts: specific political publicity that aims the candidate to be known by everyone in the neighborhood and a door-to-door canvassing which main objective is to establish a bond with the voter and maintain the link until the day of general elections at least.

Door to door canvassing

To ensure that the intervention would be administered uniformly, only the candidate can visit the voters. One of the main difference with others interventions is that the visits are done by a candidate nor an activist.

To start and lead the conversations during the visit the candidate used persuasive strategy techniques to encourage people to be part of the intervention. He began asking to voters if they can identify some social issues in their nearly neighborhood. Later, he provided basic information about council city functions. As the candidate is an actual member of the city council he is able to present any complaint or request in the name of any member of the community.

Future contacts after visits were managed by the same person, who was instructed to contact voters by Whatsapp and gave them specific information about their complaints or requests to ensure a frequently contact with the voters. In this instance, we conducted surveys by phone and asked about public and social recognition, acknowledgement and appreciation of different candidates. This information provided evidence of the impact of the intervention.

Unlike others studies of door-to-door canvasing, our intervention implies several contacts with the treatment group. The experiment started on 18th February and is finishing on 8th August, the last day of the canvassing before the primary elections. During more than six months, the candidate made a personal visit every two months and whatsapp contacts every month to maintain the bond created in the first visit.

The campaign team estimated that the visits will done three days per week, clearing a polling station out per day. Once they have visited all the territory, they will start again with a second round and then with third one. They estimated that 25% in average will be in agreement with the visit.

Publicity

First of all, we have to differentiate the general campaign publicity that comprises the political coalition the candidate belongs to and the political advertisement in the inner experiment. The candidates’ publicity was exclusively developed for the experiment.

On the other hand, the general coalition advertising in La Plata has started in December 2018. To preserve the intervention area of our experiment, we set exclusions zones for about 1100 meters around the electoral building where there are no type of political publicity in favor of the candidate. In addition, the telephone contact in the candidate’s advertisement is unique which allow us to identify which type of publicity the neighbor has seen.

The 18th of February will take place the intervention in the eligible territory. Taking into account the content of the political proposal, the expectations of the electorate, the personal characteristics, the budget of the campaign, the personality of the candidate and the political conjuncture, the campaign team defined three impersonal techniques: flyers under the door, posters in public places in the defined territory and stickers.

The material used in the intervention is appropriate to every single neighborhood. Through the emission of images and transmission of interpersonal symbols they are prepared to create a virtual contact between the candidate and the voter. As the candidate is compete for an elected position at the municipal level, it is imperative to create a link between the name of the candidate and the coalition he is belong.

The canvassing techniques are dedicated exclusively to the door-to-door campaign. Furthermore, phone and email contacts are unique to the intervention after which we could have a measure of the contamination of other publicity. It is also allows us to survey treated households and have a measure of the intervention strategies to get-out-the-vote.
Intervention Start Date
2019-02-18
Intervention End Date
2019-08-11

Primary Outcomes

Primary Outcomes (end points)
Our main outcome is the percentage of treated voters in each polling station
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
(1) the number of complaints and requests made by the candidate and voters;
(2) the number of direct contacts made by voters;
(3) a dummy variable that reflects if voter participate in any City Council Session, and
(4) a dummy variable to capture social involvement at neighborhood level like neighborhoods’ meetings.
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
first place we settle on the territory where the intervention can be done. Regardless of the 255 authorized polling stations the 8th electoral section has, we were allowed to run the experiment in only 50.
We consider target households to every house which location is at most two blocks from each eligible polling place.
The units of analysis are the polling stations at the polling places.
Experimental Design Details
first place we settle on the territory where the intervention can be done. Before the randomization took place, the campaign team determined the polling places where they can visit without interfere in the general political canvassing. Regardless of the 255 authorized polling stations the 8th electoral section has, we were allowed to run the experiment in only 50 (approximate 20%).
We consider target households to every house which location is at most two blocks from each eligible polling place.
The units of analysis are the polling stations at the polling places.
Randomization Method
Random numbers with Stata
Randomization Unit
We first divided the eligible territory in 4 strata: the Metropolitan area, the North (Tolosa, Ringuelet, Gonnet and City Bell), the West (Los Hornos and Lisandro Olmos) and the South (Villa Elvira, San Lorenzo and Arana).
Randomization was done within each strata. We randomly select polling places equally to the treatment and control groups, using random numbers in Stata.

As we have already defined the target number of households in each territory, the population is every voter who lives in the eligible territory and vote in that polling place.
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
36 groups of polling stations and 268 polling stations
Sample size: planned number of observations
5,000 voters
Sample size (or number of clusters) by treatment arms
18 groups of polling places publicity treatment
18 groups of polling places door-to-door and publicity treatment

Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan

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Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials