Building social license to operate? Evidence from a randomized information intervention in aquaculture

Last registered on June 11, 2025

Pre-Trial

Trial Information

General Information

Title
Building social license to operate? Evidence from a randomized information intervention in aquaculture
RCT ID
AEARCTR-0016168
Initial registration date
June 04, 2025

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
June 11, 2025, 6:46 AM EDT

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

Locations

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information

Primary Investigator

Affiliation
Bates College

Other Primary Investigator(s)

PI Affiliation
Colby College
PI Affiliation
Bates College
PI Affiliation
Bates College

Additional Trial Information

Status
In development
Start date
2025-06-07
End date
2027-12-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
Resource-use industries face a challenge of gaining social acceptance, or “social license to operate”, that may be necessary to gain formal approval to begin operations. One strategy to build social license to operate is communication with community members. This project will study whether and how education through communication affects social license to operate in the context of the aquaculture industry in coastal Maine. We will conduct a randomized control trial to assign invitations to participate in tours of aquaculture farms to members of coastal communities in Maine. Following the tour, a survey and choice experiment in which participants allocate funds given by the research team will measure knowledge and valuation of aquaculture. Those not on the tour will complete the survey and experimental game online. Our hypothesis is that participating in the aquaculture tour will increase knowledge and valuation of aquaculture, consistent with greater social license to operate for aquaculture.
External Link(s)

Registration Citation

Citation
Bird, Samuel et al. 2025. "Building social license to operate? Evidence from a randomized information intervention in aquaculture." AEA RCT Registry. June 11. https://doi.org/10.1257/rct.16168-1.0
Sponsors & Partners

There is information in this trial unavailable to the public. Use the button below to request access.

Request Information
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2025-06-07
Intervention End Date
2027-12-31

Primary Outcomes

Primary Outcomes (end points)
1. Knowledge of Maine Aquaculture & Maine Economy
2. Rank Order Preference of Priorities for Coastal Communities
3. Rank Order Preference of Initiatives/Actions in Coastal Communities
4. Choice Experiment Allocation from Community Clean Energy Programs
5. Choice Experiment Allocation from Resilient Working Waterfront Program
Primary Outcomes (explanation)
1. Knowledge of Maine Aquaculture & Maine Economy: Five survey question responses will be used to construct a quiz score for each respondent
2. Rank Order Preference of Priorities for Coastal Communities: Respondents will order the following priorities from most important (1) to least important (5).
a. Economic Well-Being
b. Coastal Resilience
c. Water-based industries
d. Public services
e. Maine’s Cultural Identity
3. Rank Order Preference of Initiatives/Actions in Coastal Communities: Respondents will order the following initiatives from most important (1) to least important (5).
a. Facilitating and supporting shellfish and seaweed aquaculture operations
(each respondent will see 4 randomly selected alternatives from the list below)
b. Facilitating and supporting finfish aquaculture operations
c. Facilitating and supporting commercial fishing operations
d. Enhancing and maintaining working waterfront infrastructure
e. Improving storm readiness and resilience of coastal communities
f. Improving and maintaining the coastal habitat
g. Supporting recreational use of Maine’s coastal areas
h. Supporting development of renewable energy production
i. Supporting development of affordable housing
j. Investing in k-12 and adult education
k. Supporting new and established small businesses
l. Supporting engagement in community management and volunteer capacity
m. Supporting programs for healthy aging adults
n. Enhancing and maintaining shelters and food banks
4-5. Choice Experiment Allocations: Respondents make an incentive-compatible allocation of funds that are being gifted to a non-governmental organization. Respondents will see the following prompt (organization name withheld):
"(A non-governmental organization) has been gifted $1,000. The money will be allocated to programs based on input from survey respondents, including possibly yours. Think carefully about your response to each scenario because one, and only one, response will be randomly selected from all submitted surveys this season. The money will be allocated according to that selection. The maximum amount that you can choose to give for each scenario is $1,000."
Each respondent then faces two scenarios. In each scenario, they choose how much of the $1,000 to reallocate from that scenario's program to Sustainable Aquaculture programs.

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We will conduct a randomized control trial to assign invitations to participate in tours of aquaculture farms to members of coastal communities in Maine. Our research design leverages planned tours in the coming three years (2025-2027) to identify the causal effect of the tours on participants’ knowledge and valuation of aquaculture. Tours occur in different locations along the coast of Maine. For each tour, we will use publicly available information from government websites to develop a list of policymakers based near the site of the tour. For each tour, the research team will use the list of individuals to randomly assign the order in which individuals are be invited to the aquaculture tour using the statistical program Stata. We will assign each individual a random number drawn from a uniform distribution ranging from 0 to 1. Then we will rank individuals in order of their random number from small to large. To recruit individuals for the tour, the Island Institute will invite the individuals with the smallest random numbers using their usual methods of outreach (email/phone). This process ensures that randomization is the mechanism through which all tour participants are invited.
Experimental Design Details
Not available
Randomization Method
Randomization done in office by a computer
Randomization Unit
Individual, stratified by tour
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
240
Sample size: planned number of observations
240
Sample size (or number of clusters) by treatment arms
120 individuals control, 120 individuals treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Bates College Institutional Review Board
IRB Approval Date
2025-04-28
IRB Approval Number
25-24