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Supply Chain Development for Sanitation in Tanzania

Last registered on May 16, 2016
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Pre-Trial

Trial Information

General Information

Title
Supply Chain Development for Sanitation in Tanzania
RCT ID
AEARCTR-0001242
Initial registration date
May 16, 2016

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
May 16, 2016, 4:52 AM EDT

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

Locations

Country
Tanzania, United Republic of
Region
Morogoro and Njombe

Primary Investigator

Name
Rachel Peletz
Affiliation
Aquaya
Contact Primary Investigator

Other Primary Investigator(s)

PI Name
Ranjiv Khush
PI Affiliation
Aquaya
PI Name
Pascaline Dupas
PI Affiliation
Stanford University

Additional Trial Information

Status
Completed
Start date
2015-01-01
End date
2015-12-31
Keywords
Finance & Microfinance
Additional Keywords
sanitation
JEL code(s)
Secondary IDs
Abstract
In rural Tanzania, approximately 80% of the population has access to some sort of basic latrine, though the majority of these latrines do not meet the UNICEF-WHO Joint Monitoring Programme (JMP) definitions of improved. The low quality of most rural sanitation facilities contributes to poor public health and, thereby, hinders economic growth. To address these concerns, the Government of Tanzania launched the National Sanitation Campaign to increase the proportion of rural households with improved sanitation. Latrine slabs (SanPlats) were designed at relatively low-cost and introduced to provide a smooth, easily cleaned, and safe opening for pit latrines. Several sanitation campaigns have promoted demand for SanPlats; however, efficient systems for supplying SanPlats currently do not exist in Tanzania.

The aims of this study are twofold (1) to determine what consumer demand is for latrine slabs at various price points and whether demand at a given price point increases through community exposure and/or sensitization campaigns and (2) to assess potential involvement of private business operators in the improved sanitation supply chain for increasing the availability of latrine slabs to rural Tanzanian households.


External Link(s)

Registration Citation

Citation
Dupas, Pascaline, Ranjiv Khush and Rachel Peletz. 2016. "Supply Chain Development for Sanitation in Tanzania." AEA RCT Registry. May 16. https://doi.org/10.1257/rct.1242-1.0
Former Citation
Dupas, Pascaline, Ranjiv Khush and Rachel Peletz. 2016. "Supply Chain Development for Sanitation in Tanzania." AEA RCT Registry. May 16. https://www.socialscienceregistry.org/trials/1242/history/8199
Sponsors & Partners
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2015-01-01
Intervention End Date
2015-11-30

Primary Outcomes

Primary Outcomes (end points)
- Supply-chain options and costs for latrine slabs
- Household willingness-to-pay for latrine slab products
- Consumer preferences between latrine slab products
- Impact of information on WTP (community exposure, hygiene information, sensitization campaigns)
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design

This study will be in the form of a voucher-based sales trial. Experimental studies have been found to provide valuable information on willingness-to-pay and consumer demand (Blum 2014; Luoto 2012; Dupas 2014; Shah 2013). The sales trial will determine what consumer demand is for latrine slabs at various price points and whether demand at a given price point increases through community exposure and/or sensitization campaigns. In addition, it will assess potential involvement of private business operators in the improved sanitation supply chain for increasing the availability of latrine slabs to rural Tanzanian households.


Experimental Design Details
Randomization Method
Randomly selected by household
Randomization Unit
Household
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
1440 households
Sample size: planned number of observations
1440 households
Sample size (or number of clusters) by treatment arms
1440 households from 40 villages
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Supporting Documents and Materials
IRB

Institutional Review Boards (IRBs)

IRB Name
Tanzania Commission for Science and Technology
IRB Approval Date
2015-06-04
IRB Approval Number
2015-172-NA-201573
IRB Name
National Institute for Medical Research in Tanzania
IRB Approval Date
2015-03-02
IRB Approval Number
NIMR/HQ/R.8a/Vol. IX/1916
IRB Name
Stanford University
IRB Approval Date
2014-11-14
IRB Approval Number
Protocol ID 32426, IRB 346
Analysis Plan

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
No
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials