Salience of the energy-efficiency trade-off and purchase of energy efficient appliances

Last registered on March 02, 2019

Pre-Trial

Trial Information

General Information

Title
Salience of the energy-efficiency trade-off and purchase of energy efficient appliances
RCT ID
AEARCTR-0003939
Initial registration date
February 27, 2019
Last updated
March 02, 2019, 1:04 PM EST

Locations

Region

Primary Investigator

Affiliation
University of Milan

Other Primary Investigator(s)

PI Affiliation
Politecnico di Milano
PI Affiliation
University of Bonn
PI Affiliation
Peking University

Additional Trial Information

Status
Completed
Start date
2018-06-01
End date
2018-10-16
Secondary IDs
Abstract
The RCT studies the impact of making the energy-efficiency trade-offs salient on purchases of refrigerators from an online retailer. Experimental treatments display the energy consumption costs of refrigerators in Euro, and vary the level of aggregation of such information (1 year versus 15 years). Data collection began in June 2018 and ended in October 2018. The intervention targeted an estimated number of around 610k visits on the online retailer refrigerator web pages. Our analysis will study the impact of the experimental treatments on purchasing and search behavior of customers who visited the website and purchased a refrigerator on the online platform over the study period. We are currently in the process of merging and cleaning the various sources of data, detailed in the PAP, and expcet to begin data analysis in March 2019.
External Link(s)

Registration Citation

Citation
d'Adda, Giovanna et al. 2019. "Salience of the energy-efficiency trade-off and purchase of energy efficient appliances." AEA RCT Registry. March 02. https://doi.org/10.1257/rct.3939-1.0
Former Citation
d'Adda, Giovanna et al. 2019. "Salience of the energy-efficiency trade-off and purchase of energy efficient appliances." AEA RCT Registry. March 02. https://www.socialscienceregistry.org/trials/3939/history/42347
Sponsors & Partners

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Experimental Details

Interventions

Intervention(s)
The intervention is described in detail in the attached Pre-Analysis Plan.
Intervention Start Date
2018-06-01
Intervention End Date
2018-10-16

Primary Outcomes

Primary Outcomes (end points)
The primary outcomes and the way, in which they are defined and constructed, described in detail in the attached Pre-Analysis Plan.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The experimental design is described in detail in the attached Pre-Analysis Plan.
Experimental Design Details
Randomization Method
Through a randomization software by the partner.
Randomization Unit
Individual (cookie-based).
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
We currently know that there were 610k visits to the website over the study period, and 15k refrigerator purchases.
Sample size: planned number of observations
About 15,000 when considering only individuals who purchased refrigerators.
Sample size (or number of clusters) by treatment arms
About 5,000 purchases in the control treatment, 5,000 in the 1-year energy cost information treatment, and 5,000 in the 15-years energy cost information treatment.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Comitato Etico della Ricerca Politecnico di Milano
IRB Approval Date
2017-07-07
IRB Approval Number
10/2017
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