Understanding Adoption for Clean Cookstoves: A Demand Study

Consumer Behavior Clinical Trial

Official title:

Understanding Adoption of Clean Cookstoves

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04454944
• Other study ID #: AAAS9921
• Status: Completed
• Phase: N/A
• Start date: February 15, 2021
• Est. completion date: November 11, 2021

Study information

• Verified date: February 2024
• Source: Columbia University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The aim of the Adoption study is to determine how best to encourage people to adopt clean cookstoves in order to diminish the global health risk of household air pollution. The study harnesses an existing cohort in Ghana to study factors that increase the adoption of clean cookstoves, and to test strategies to promote adoption and continued use. Limited past research has shown that the demand for clean cookstoves is low, and that households continue to use traditional hearths even when they have clean cookstoves. This behavior threatens to undermine clean cookstove intervention programs, such as those promoted by the Global Alliance for Clean Cookstoves. The proposed study aims to ascertain the demand curve for liquified petroleum gas (LPG) in the Kintampo North Municipality and South district.

Description:

The study will assess if demand for LPG in rural settings in Ghana is price elastic - and by how much - by providing different levels of LPG price subsidies. It will also ascertain if demand is influenced by distance by allocating participants to varying distances to points of LPG supply. Finally, it will assess factors that could affect the demand for LPG such as availability and price of other fuels for cooking, and income levels.

In particular the objectives of the study are:

1. To determine if demand for LPG is price elastic

2. To determine if demand for LPG is influenced by distance

3. To ascertain what other factors aside the price of LPG, and distance to point of LPG supply, determine the demand for LPG

4. To document the successes and challenges of introducing a subsidy for LPG in rural settings

Recruitment information / eligibility

• Status: Completed
• Enrollment: 890
• Est. completion date: November 11, 2021
• Est. primary completion date: November 11, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Female

• 18 years of age or older

• Primary cook of the household

• Part of the Ghana Randomized Air Pollution and Health Study (GRAPHS) sample or reside in a sample village

• Owns an LPG stove and cylinder (provided by the project in the case of newly recruited households)

Exclusion Criteria

• Temporarily residing in study area.

Related Conditions & MeSH terms

• Consumer Behavior

Intervention

Behavioral:
• LPG subsidy
Different subsidy rates, ranging between 0% and 100% (listed below) will be written on cards. Individuals will randomly select a card to display the subsidy rate for each household. The card will be concealed with a scratch-off sticker, with a higher likelihood of drawing a high price (low subsidy) than a low price (high subsidy) given that take up will be higher in the latter group.
• Distance allocation
We will set up fuel supply depots to increase the convenience and lower costs and hassle associated with traveling to an established filling station. The supply depots will mirror a recirculation model of LPG distribution currently being piloted by the National Petroleum Authority of Ghana. Households will be randomly assigned to one of the supply depots in advance or to continue refilling their cylinder at the filling station.

Locations

Country	Name	City	State
Ghana	Kintampo Medical Research Center	Kintampo
United States	Columbia University Medical Center	New York	New York

Sponsors (3)

Lead Sponsor	Collaborator
Columbia University	Kintampo Health Research Centre, Ghana, University of California, Santa Barbara

Countries where clinical trial is conducted

United States,  Ghana, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Demand for LPG	The primary outcome will be measured by the number of LPG cylinder purchases and/or refills by the study participant.	6 months