Temperature and Cooperation

Last registered on January 30, 2023

View Trial History

Pre-Trial

Trial Information

General Information

Title

Temperature and Cooperation

RCT ID

AEARCTR-0009741

Initial registration date

July 13, 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

July 18, 2022, 9:19 AM EDT

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

Last updated

January 30, 2023, 11:06 AM EST

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

Locations

Country

Region

Country

Region

Country

United States of America

Region

Davis, California

Primary Investigator

Name

Andrew Hobbs

Affiliation

Contact Primary Investigator

Other Primary Investigator(s)

PI Name

Bruce Wydick

PI Affiliation

University of San Francisco

PI Name

Alessandra Cassar

PI Affiliation

University of San Francisco

PI Name

Irvin Rojas

PI Affiliation

CIDE

PI Name

Travis Lybbert

PI Affiliation

UC Davis

Additional Trial Information

Status

On going

Start date

2022-06-15

End date

2023-01-31

Keywords

Behavior, Crime, Violence, & Conflict, Environment & Energy, Lab

Additional Keywords

JEL code(s)

Secondary IDs

Prior work

This trial does not extend or rely on any prior RCTs.

Abstract

This study examines how ambient temperatures affect human behavior.

External Link(s)

Registration Citation

Citation

Cassar, Alessandra et al. 2023. "Temperature and Cooperation." AEA RCT Registry. January 30. https://doi.org/10.1257/rct.9741-2.0

Sponsors & Partners

Experimental Details

Interventions

Intervention(s)

Intervention Start Date

2022-06-15

Intervention End Date

2023-01-31

Primary Outcomes

Primary Outcomes (end points)

Generosity, egalitarianism, and aggregate utility maximization, selfishness, spite, and competitiveness.

Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)

Secondary Outcomes (explanation)

Experimental Design

We plan to test how ambient air temperatures affect various measures of human behavior.

Experimental Design Details

Randomization Method

Randomization will be done using a computer.

Randomization Unit

Treatment will be randomized at the session level.

Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters

We plan on conducting sessions with 8-10 participants at a time, meaning we should have approximately 150-175 sessions with four sites (additional sites may be added later).

Sample size: planned number of observations

Roughly 1400 assuming four sites, but we may add more sites.

Sample size (or number of clusters) by treatment arms

Treatment is continuous (temperature) and we plan on varying it between 18 and 24 degrees.

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

See attached pre-analysis plan.

Supporting Documents and Materials

Documents

Document Name

Pre-Analysis Plan Addendum

Document Type

other

Document Description

We create this addendum after having done a preliminary analysis of results on the effect of temperature in Mexico and India, and of gender in India, but before data has been compiled for analysis from California and Kenya and before experimental work has been carried out in Colombia, and (potentially) Italy. Changes can be seen in the modified PAP that follows this addendum.

File

Pre-Analysis Plan Addendum

MD5: a5e2a0dad484698cd1d820ab0f60dd47

SHA1: 76a8b10dacac90abcf0a836a7debed04b1c666fc

Uploaded At: January 30, 2023

IRB