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Decision-making in Kenyan Households: Implications for Maternal Nutrition and Newborn Health
Last registered on June 07, 2018

Pre-Trial

Trial Information
General Information
Title
Decision-making in Kenyan Households: Implications for Maternal Nutrition and Newborn Health
RCT ID
AEARCTR-0002948
Initial registration date
June 05, 2018
Last updated
June 07, 2018 12:01 PM EDT
Location(s)
Region
Primary Investigator
Affiliation
Washington State University
Other Primary Investigator(s)
PI Affiliation
J-PAL
Additional Trial Information
Status
In development
Start date
2018-06-04
End date
2018-08-31
Secondary IDs
Abstract
There is a growing consensus in the economics literature that household decision-making is often characterized by inefficient use of resources. This suboptimal allocation of resources leads to “leaving money on the table” and is believed to arise from an inefficient bargaining process in which household members have different preferences and levels of bargaining power. In particular, in many developing countries where gender disparities are widespread, the preferences of women may not be given as much weight in household decisions. This project aims to understand the relationship between household efficiency, women’s bargaining power in the household, and nutrition outcomes for pregnant women and their newborns. We will recruit up to 1,200 pregnant women, participating in a partner study, and their spouses. We will use an economic experiment to measure bargaining power. We will access nutrition data from the partner study to assess how this revealed-preference measure of bargaining power varies with nutrition outcomes. We will also study whether a complex nutrition intervention delivered as part of a randomized controlled trial changes the relationship between bargaining power and nutrition outcomes.
External Link(s)
Registration Citation
Citation
Duru, Maya and Shanthi Manian. 2018. "Decision-making in Kenyan Households: Implications for Maternal Nutrition and Newborn Health." AEA RCT Registry. June 07. https://doi.org/10.1257/rct.2948-1.0.
Former Citation
Duru, Maya, Shanthi Manian and Shanthi Manian. 2018. "Decision-making in Kenyan Households: Implications for Maternal Nutrition and Newborn Health." AEA RCT Registry. June 07. http://www.socialscienceregistry.org/trials/2948/history/30432.
Sponsors & Partners

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Experimental Details
Interventions
Intervention(s)
This study is conducted in partnership with the One Acre Fund 1,000 Days Effectiveness Study (henceforth 1AF TDES) in Kenya, which provides pregnant women and their newborns with a suite of nutrition products and information through a cluster-randomized controlled trial.
Intervention Start Date
2018-06-04
Intervention End Date
2018-08-31
Primary Outcomes
Primary Outcomes (end points)
• Maternal middle-upper arm circumference (MUAC) at 35-36 weeks gestation
• Antenatal care attendance at 35-36 weeks gestation
• Newborn birthweight
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
• Maternal hemoglobin concentration at 35-36 weeks
• Maternal malaria parasitemia at 35-36 weeks
• Diet and nutrition knowledge, attitudes and practices at 35-36 weeks
• Dietary diversity at 35-36 weeks
• Newborn hemoglobin concentration
• Newborn micronutrient status
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We will recruit pregnant women participating in 1AF TDES and their husbands/steady partners to participate in a short, incentivized economic experiment. We will then access nutritional data on the same pregnant women and, eventually, their newborns collected by GroundWork and One Acre Fund for the 1,000 Days Effectiveness study. We will match the data on bargaining power to the results of the experiment.

We will measure both household efficiency and women’s bargaining power in the household at baseline using a series of “public good” games, also known as the voluntary contribution mechanism.
Experimental Design Details
Randomization Method
Computer
Randomization Unit
Cluster randomization of nutrition intervention
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
120 villages
Sample size: planned number of observations
1200 pregnant women and 1200 spouses
Sample size (or number of clusters) by treatment arms
60 clusters control, 60 clusters treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
AMREF Ethics and Scientific Review Committee
IRB Approval Date
2018-02-19
IRB Approval Number
P429-2018
IRB Name
Washington State University
IRB Approval Date
2018-02-28
IRB Approval Number
16629-001
Analysis Plan

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Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is 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