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Overcoming Supply Side Frictions for Distribution
Last registered on June 05, 2018

Pre-Trial

Trial Information
General Information
Title
Overcoming Supply Side Frictions for Distribution
RCT ID
AEARCTR-0003028
Initial registration date
June 04, 2018
Last updated
June 05, 2018 3:30 PM EDT
Location(s)
Region
Primary Investigator
Affiliation
University of California-Berkeley
Other Primary Investigator(s)
PI Affiliation
University of California-Berkeley
PI Affiliation
University of Texas-Austin
Additional Trial Information
Status
Completed
Start date
2013-01-01
End date
2016-04-30
Secondary IDs
Abstract
A large literature examines demand-side barriers to product adoption. In this experiment, we investigate supply-side barriers. We recruited entrepreneurs from BRAC's network of community health providers (CHPs) to distribute solar lights in rural Uganda. We provide entrepreneurs with training and information on solar lights. We then randomized over which arrangement to offer to the entrepreneurs. There were three contractual feature that we varied, one aimed at addressing credit constraints, one aimed at addressing vendor uncertainty, and one aimed at addressing customer uncertainty. We explored how each of these features influence overall sales performance of entrepreneurs.

External Link(s)
Registration Citation
Citation
Fuchs, William, Brett Green and David Levine. 2018. "Overcoming Supply Side Frictions for Distribution." AEA RCT Registry. June 05. https://doi.org/10.1257/rct.3028-1.0.
Former Citation
Fuchs, William, Brett Green and David Levine. 2018. "Overcoming Supply Side Frictions for Distribution." AEA RCT Registry. June 05. https://www.socialscienceregistry.org/trials/3028/history/30362.
Sponsors & Partners

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Experimental Details
Interventions
Intervention(s)
We randomly offered trade credit and the right to return unsold inventory to vendors of solar lights. We also randomly offered a "loaner light" that vendors could lend to customers for free trials.
Intervention Start Date
2013-04-01
Intervention End Date
2015-06-30
Primary Outcomes
Primary Outcomes (end points)
Orders of solar lights by vendors
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We randomly offered trade credit and the right to return unsold inventory to vendors of solar lights. We also randomly offered a "loaner light" that vendors could lend to customers for free trials.
Experimental Design Details
Randomization Method
We divided each BRAC branch into 4 zones of several nearby vendors.
We randomized zones using the pseduo-random number generator in Excel.

Within each zone, we randomly chose one vendor to receive the "loaner" solar light.
Randomization Unit
We randomized zones for credit and right to return. We randomized vendors for who would receive the loaner light first.
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
We planned 8 branches with 4 zones per branch = 32 zones (the unit of randomization).
Sample size: planned number of observations
We anticipated 4 vendors per zone * 32 zones = 128 vendors.
Sample size (or number of clusters) by treatment arms
16 zones with credit and right to return (that is, consignment)
16 zones with credit only
16 zones with right to return only
16 zones with neither
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials

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IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
University of California, Berkeley
IRB Approval Date
Details not available
IRB Approval Number
2012-09-4669
Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
Yes
Intervention Completion Date
June 30, 2014, 12:00 AM +00:00
Is data collection complete?
Yes
Data Collection Completion Date
Final Sample Size: Number of Clusters (Unit of Randomization)
8 branches * 4 zones per branch = 32 zones
Was attrition correlated with treatment status?
No
Final Sample Size: Total Number of Observations
32 zones & 129 vendors
Final Sample Size (or Number of Clusters) by Treatment Arms
16 zones with credit and right to return (that is, consignment) 16 zones with credit only 16 zones with right to return only 16 zones with neither (control)
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
No
Reports and Papers
Preliminary Reports
Relevant Papers