Infringing Use, Search Costs, and Legal Consumption: Evidence from a Field Experiment

Last registered on August 21, 2018

Pre-Trial

Trial Information

General Information

Title
Infringing Use, Search Costs, and Legal Consumption: Evidence from a Field Experiment
RCT ID
AEARCTR-0003238
Initial registration date
August 20, 2018

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
August 21, 2018, 12:35 AM EDT

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

Locations

Region

Primary Investigator

Affiliation
Harvard Business School

Other Primary Investigator(s)

PI Affiliation
Boston College and NBER

Additional Trial Information

Status
Completed
Start date
2017-11-15
End date
2017-12-22
Secondary IDs
Abstract
Motivated by the observation that infringing use of content reveals demand and that infringement may result from frictions preventing legal consumption, we contact infringers of expensive digital images and direct them toward a cheaper product. Two interventions are designed to
reduce search costs for (i) price and (ii) product information.
External Link(s)

Registration Citation

Citation
Luo, Hong and Julie Holland Mortimer. 2018. "Infringing Use, Search Costs, and Legal Consumption: Evidence from a Field Experiment." AEA RCT Registry. August 21. https://doi.org/10.1257/rct.3238
Former Citation
Luo, Hong and Julie Holland Mortimer. 2018. "Infringing Use, Search Costs, and Legal Consumption: Evidence from a Field Experiment." AEA RCT Registry. August 21. https://www.socialscienceregistry.org/trials/3238/history/33311
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2017-11-15
Intervention End Date
2017-12-04

Primary Outcomes

Primary Outcomes (end points)
Licensing outcomes of digital images, including whether or not a license is purchased and, if so, revenue generated.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
There are six groups in total: two control groups and four treatment groups. Emails to the two control groups offer only the option of licensing the infringed premium image currently displayed on the firm's (commercial) website. Emails to all the treatment groups add a cheaper micro-stock licensing option, in addition to the premium option. Two interventions are designed to provide the (i) price and (ii) product information.
Experimental Design Details
Randomization Method
Done by a random number generator in Stata
Randomization Unit
Firm
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
24680 infringing firms
Sample size: planned number of observations
24680 infringing firms
Sample size (or number of clusters) by treatment arms
2904 (control group, without premium-image price information); 2912 (control group, with premium-image price information); 2906 (treatment group, without premium-image price information and without image recommendations); 6522 (treatment group, without premium-image price information but with image recommendations); 2912 (treatment group, with premium-image price information but without image recommendations); 6524 (treatment group, with premium-image price information and with image recommendations)
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number

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