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Field
Trial End Date
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Before
December 31, 2021
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After
December 31, 2024
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Field
Last Published
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Before
June 16, 2020 08:48 PM
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After
May 04, 2023 02:49 PM
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Field
Intervention (Public)
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Before
Intervention #1: We installed air quality monitors across a random sample of garment factories (firms) in Dhaka.
Intervention #2: We will inform owners and workers across a random sample of garment factories (firms) in Dhaka through pollution report cards describing outdoor and indoor pollution levels, effect of pollution on productivity (from Intervention #1), and the protective effects of air pollution masks.
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After
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Field
Intervention End Date
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Before
December 15, 2021
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After
December 31, 2024
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Field
Experimental Design (Public)
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Before
Our research design has two parts: the first part will estimate the effect of pollution on productivity (N = 40 firms); the second part will examine the willingness-to-pay for air pollution masks (N = 600 firms).
Part 1: In the first part, we will randomly sample 40 firms and install air quality monitors in each firm. We will install air purifiers in 20 randomly selected firms for a period of 6 months (treatment group). In our analysis, we will compare productivity indicators between the treatment and control group to estimate the impact of air filters on productivity.
Part 2: In the second part, we will randomly sample 600 firms.
Baseline Survey Visit: Surveyors will visit 600 firms and speak to both the factory owner and factory workers about pollution: Surveyors will conduct a baseline survey, which will include a module on pollution and beliefs about outdoor and indoor pollution levels, effect of pollution on productivity, and the protective effects of face masks. During the visit, objective indoor and outdoor pollution levels for factories in both the treatment and control group will be collected via air monitors. After the survey, during the same visit, surveyors will conduct the information intervention for the treatment group.
Information Intervention and Pollution Report Cards (Treatment Group Only): Surveyors will walk factory owners and factory workers through pollution report cards describing (objective) outdoor and indoor pollution levels, effect of pollution on productivity (from Part 1), and the protective effects of air pollution masks (engineering estimates).
Willingness-to-Pay Experiment: At the end, both factory owners and factory workers will be asked to take part in a real-stakes willingness-to-pay experiment; we will elicit willingness to pay for face masks using an incentive-compatible Becker-deGroot-Marschak (BDM) mechanism, which both induces exogenous variation in take-up and yields high resolution data on individual face-mask demand.
In our analysis, we will simply compare willingness-to-pay estimates across as well as between workers and owners in the treatment and control groups.
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After
Our research design has two parts: the first part will estimate the effect of pollution on productivity (N = 100 firms); the second part will examine the willingness-to-pay for air pollution purifiers (N = 600 firms).
Part 1: In the first part, we will randomly sample 100 firms and install air quality monitors in each firm. We will install air purifiers in 50 randomly selected firms for a period of 12 months (treatment group). In our analysis, we will compare productivity indicators between the treatment and control group to estimate the impact of air filters on productivity.
Part 2: In the second part, we will randomly sample 600 firms.
Baseline Survey Visit: Surveyors will visit 600 firms and speak to both the factory owner and factory workers about pollution: Surveyors will conduct a baseline survey, which will include a module on pollution and beliefs about outdoor and indoor pollution levels, effect of pollution on productivity, and the protective effects of air purifiers. During the visit, objective indoor and outdoor pollution levels for factories in both the treatment and control group will be collected via air monitors. After the survey, during the same visit, surveyors will conduct the information intervention for the treatment group.
Information Intervention and Pollution Report Cards (Treatment Group Only): Surveyors will walk factory owners and factory workers through pollution report cards describing (objective) outdoor and indoor pollution levels, effect of pollution on productivity (from Part 1), and the protective effects of air pollution purifiers (engineering estimates).
Willingness-to-Pay Experiment: At the end, both factory owners and factory workers will be asked to take part in a real-stakes willingness-to-pay experiment; we will elicit willingness to pay for air purifiers using an incentive-compatible Becker-deGroot-Marschak (BDM) mechanism, which both induces exogenous variation in take-up and yields high resolution data on individual air-purifier demand.
In our analysis, we will simply compare willingness-to-pay estimates across as well as between workers and owners in the treatment and control groups.
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Field
Planned Number of Clusters
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Before
Intervention #1: 40 firms
Intervention #2: 600 firms
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After
Intervention #1: 100 firms
Intervention #2: 600 firms
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Field
Planned Number of Observations
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Before
Intervention #1: 400 workers
Intervention #2: 600 firm owners and 600 workers
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After
Intervention #1: 2000 workers
Intervention #2: 600 firm owners and 600 workers
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Field
Sample size (or number of clusters) by treatment arms
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Before
Intervention #1: 20 garment factories/firms in the control group, 20 garment factories/firms in the control group
Intervention #2: 300 garment factories/firms in the control group, 300 garment factories/firms in the control group
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After
Intervention #1: 50 garment factories/firms in the control group, 50 garment factories/firms in the control group
Intervention #2: 300 garment factories/firms in the control group, 300 garment factories/firms in the control group
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Field
Keyword(s)
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Before
Environment And Energy
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After
Environment And Energy
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Field
Intervention (Hidden)
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Before
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After
Intervention #1: We installed air quality purifiers across a random sample of garment factories (firms) in Dhaka.
Intervention #2: We will inform owners and workers across a random sample of garment factories (firms) in Dhaka through pollution report cards describing outdoor and indoor pollution levels, effect of pollution on productivity (from Intervention #1), and the protective effects of air purifiers.
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Field
Building on Existing Work
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Before
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After
Yes
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