Moral NIMBY-ism

Last registered on October 02, 2017

Pre-Trial

Trial Information

General Information

Title
Moral NIMBY-ism
RCT ID
AEARCTR-0002413
Initial registration date
October 02, 2017
Last updated
October 02, 2017, 10:00 PM EDT

Locations

Region

Primary Investigator

Affiliation
University of Toronto

Other Primary Investigator(s)

PI Affiliation
Johns Hopkins University

Additional Trial Information

Status
In development
Start date
2017-10-02
End date
2017-11-01
Secondary IDs
Abstract
We will run a survey experiment to test for the presence of “Nimby-ism” in the attitudes toward morally controversial transactions, that is, the tendency to see certain trades as less morally acceptable if they occur in one’s country. We will study the case of compensation for plasma donors.
External Link(s)

Registration Citation

Citation
Lacetera, Nicola and Mario Macis. 2017. "Moral NIMBY-ism." AEA RCT Registry. October 02. https://doi.org/10.1257/rct.2413-1.0
Former Citation
Lacetera, Nicola, Nicola Lacetera and Mario Macis. 2017. "Moral NIMBY-ism." AEA RCT Registry. October 02. https://www.socialscienceregistry.org/trials/2413/history/21972
Experimental Details

Interventions

Intervention(s)
We will administer a survey to a sample provided by the company ResearchNow, of about 800 respondents residing in Canada.

A random subsample of respondents will read information about the demand and supply for plasma in Canada and the US, with also some reference to the fact that compensating donors is not allowed in many Canadian provinces, but a large share of plasma used in Canada is imported from the U.S., where donors are paid. Of the about 400 subjects who will read this text, a random half will then be asked to express their opinion about whether payments should be allowed in the U.S. and the other half will express an opinion as of whether payments to plasma donors should be allowed in Canada. According to whether the subjects responded positively or negatively regarding their support for payments, we will subsequently ask how much the respondents agree with some motivations for their answers. The sentences that express these motivations stress aspects such as the morality of allowing or not allowing payments, the risk of attracting donors with transmittable diseases if payments were allowed, and the importance (or not) to guarantee a sufficient domestic supply.

The remaining 400 respondents will read a similar text where, instead of comparing Canada and the U.S, the comparison will be between the U.S. and Australia, another country where compensation is not allowed and that is a net importer of plasma. A random subsample of about 200 respondents will again express an opinion about payments in the U.S, whereas the remaining 200 respondents will express opinions about allowing payments in Australia. As for the previous 400 subjects, the question about expressing support for payments will be followed by a request to rate the importance of different reasons for the response.

We will then compare the shares of individuals expressing favour for payments in the three countries. Because all respondents are from the same country, we are particularly interested in assessing the presence of absence of differences in approval rates, especially between the two countries were payments are not allowed. The additional questions about the motives behind the support or opposition will further help identifying moral NIMBYism as a cause of any difference.


In a separate survey with 400 American respondents, conducted via MTurk, we will provide information about the allocation and procurement of kidneys for transplants -- in the U.S. for a random half of the sample, and in Canada for the remaining half. Following a structure that is similar to the survey described above, we will ask subjects to express their support or opposition to paying kidney donors in the U.S, and to paying kidney donors in Canada. Again, the fact that the respondents are all from the same country, and the additional questions about the "qualifiers" of the opposition or support to payments, will help identifying differences in positions that we may reconduct to some form of different moral views according to the proximity of the issue. Note that in the case of kidney procurements, payments are illegal in both the U.S. and Canada.
Intervention Start Date
2017-10-02
Intervention End Date
2017-11-01

Primary Outcomes

Primary Outcomes (end points)
Share of respondents who express favor for allowing payments for plasma donors. We will also perform analyses of heterogeneous effects.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Please see the description fo the intervention above
Experimental Design Details
Randomization Method
Done by a computer
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
800 respondents in the first survey, and 400 in the second survey
Sample size: planned number of observations
800 respondents in the first survey, and 400 in the second survey
Sample size (or number of clusters) by treatment arms
800 respondents in the first survey, and 400 in the second survey
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
A sample size of 200 subjects per condition will allow to detect economically relevant differences of 10 to 15 percentage points in approval rates, with p<=0.5 and power of .8.
Supporting Documents and Materials

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IRB

Institutional Review Boards (IRBs)

IRB Name
University of Toronto
IRB Approval Date
2017-05-12
IRB Approval Number
30238

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials