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Field Before After
Trial End Date August 30, 2018 August 31, 2025
Last Published August 16, 2018 04:27 PM April 23, 2025 03:52 PM
Intervention Start Date August 16, 2018 April 23, 2025
Intervention End Date August 30, 2018 August 31, 2025
Experimental Design (Public) We elicit responses to the BP Oil Spill contingent valuation survey on Amazon's Mechanical Turk. We experimentally vary the price of the prevention program (high or low tax), the framing of the vote (consequential or hypothetical), a time off incentive (time off to vote for the program, neutral, or time off to vote agains the program), and the scope of the environmental damages. Additionally we will experimentally vary whether respondents are offered the opportunity to complete 1, 2, 3, 5, 6, 8, or 10 minutes of additional questions for 10, 15, or 20 cents. We elicit responses to the BP Oil Spill contingent valuation survey on Prolific. We experimentally vary the price of the prevention program (high or low tax), the framing of the vote (consequential or hypothetical), a time off incentive (time off to vote for the program, neutral, or time off to vote agains the program), and the scope of the environmental damages. Additionally we will experimentally vary whether respondents are offered the opportunity to complete 1, 2, 3, 5, 6, 8, or 10 minutes of additional questions for 10, 15, or 20 cents.
Planned Number of Clusters 5,000 respondents 7,400 respondents
Planned Number of Observations 5,000 respondents 7,400 respondents
Sample size (or number of clusters) by treatment arms 416 subjects across the 24 main treatment arms 950 for neutral conditions and 450 for time off conditions
Keyword(s) Environment And Energy Environment And Energy
Building on Existing Work No
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