Santosh Kumar

Delft University of Technology

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Sebastián Vollmer

University of Göttingen

Marion Krämer

DEval – Deutsches Evaluierungsinstitut der Entwicklungszusammenarbeit

Kaushalendra Kumar

International Institute for Population Sciences

Emily Dansereau

Gates Foundation

Fidel González

Sam Houston State University

Arindam Nandi

Population Council

Abhishek Singh

International Institute for Population Sciences

Ashish Singh

Indian Institute of Technology Madras

Roy Burstein

Gates Foundation

Samuel H. Masters

RTI International

Cooperative Institutions

University of Washington

Institute for Health Metrics and Evaluation

Mahavir Cancer Institute and Research Centre

All India Institute of Medical Sciences

Institute of Medical Sciences

University of Notre Dame

Harvard Global Health Institute

Harvard University

Seattle University

All India Institute of Medical Sciences Bhopal

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symptoms of micronutrient deficiency in peach and their control

Santosh Kumar R.C. Sharma

Micronutrient deficiency

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Systematic Status and Ecological Account of Poekilocerus (Pyrgomorphidae: Orthoptera) of Pakistan

Journal of Zoology and Systematics (2024)

Seema Perveen Memon Riffat Sultana Barkat Ali Bughio Santosh Kumar

The survey, conducted from 2021 to 2023, resulted in the collection of 368 specimens of Poekilocerus. This genus was identified as a significant pest affecting various crops, including wheat, cowpea, corn, grasses, and bushes. The primary host plant for Poekilocerus was found to be Calotropis procera (Akk plant), a species widely used in traditional medicine for treating various ailments. The populations of Poekilocerus were observed to sometimes reach plague proportions. A notable increase in individuals was recorded in the Cholistan Desert during the summer of 2020-2021, with a higher concentration found on Akk Caltrops procera. Additionally, Poekilocerus has been reported to damage approximately 40 crop species, including citrus, tobacco, Cassia spp., and pear trees. The present study discusses both a systematic account and the ecological aspects of this pest. It was also noted that a considerable number of leaves, as well as the flowers and fruits of the Akk plant, can be damaged or even stripped.

10.56946/jzs.v2i2.523

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Evaluation of fungicides against Fusarium wilt of Pea

Annals of Plant Protection Sciences (2013)

Mohd. Ali Mehi Lal A. L. Khan Santosh Kumar Vivek Singh

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Travel time to maternity care and its effect on utilization in rural Ghana: A multilevel analysis

Social Science & Medicine (2013)

Samuel H. Masters Roy Burstein George Amofah Patrick Abaogye Santosh Kumar

10.1016/j.socscimed.2013.06.012

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Does Improved Sanitation Reduce Diarrhea in Children in Rural India

Santosh Kumar Sebastián Vollmer

Almost nine million children under five years of age die every year. Diarrhea is considered to be the second leading cause of under-five mortality in developing countries. About one out of five deaths is caused by diarrhea. In this paper, we use the newly available data set DLHS-3 to quantify the impact of access to improved sanitation on diarrheal morbidity for children under five years of age in India. Using Propensity Score Matching (PSM), we find that access to improved sanitation reduces the risk of contracting diarrhea by 2.2 percentage points. There is considerable heterogeneity in the impacts of improved sanitation. We neither find statistically significant treatment effects for children in low or middle socioeconomic status (SES) households nor for girls, however, boys and children in high (SES) households experienced economically significant treatment effects. The magnitude of the treatment effect also differs largely by behavior. JEL classification: H54, I12.

Diarrheal diseases

Improved sanitation

Under-five

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Preference for Boys, Family Size, and Educational Attainment in India

Demography (2017)

Adriana D. Kugler Santosh Kumar

Using data from nationally representative household surveys, we test whether Indian parents make trade-offs between the number of children and investments in education. To address the endogeneity due to the joint determination of quantity and quality of children, we instrument family size with the gender of the first child, which is plausibly random. Given a strong son preference in India, parents tend to have more children if the firstborn is a girl. Our instrumental variable results show that children from larger families have lower educational attainment and are less likely to be enrolled in school, with larger effects for rural, poorer, and low-caste families as well as for families with illiterate mothers.

Firstborn

Endogeneity

Caste

Instrumental variable

Educational Attainment

Girl

10.1007/s13524-017-0575-1

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Improving Child Health and Cognition: Evidence from a School-Based Nutrition Intervention in India

RePEc: Research Papers in Economics (2018)

Marion Krämer Santosh Kumar Sebastián Vollmer

We present experimental evidence on the impact of delivering double-fortified salt (DFS), salt fortified with iron and iodine, through the Indian school-feeding program called “mid-day meal” on anemia, cognition, and math and reading outcomes of primary school children. We conducted a field experiment that randomly provided a one-year supply of DFS at a subsidized price to public primary schools in one of the poorest regions of India. The DFS treatment had significantly positive impacts on hemoglobin levels and reduced the prevalence of any form of anemia by 20 percent but these health gains did not translate into statistically significant impacts on cognition and test scores. While exploring the heterogeneity in effects, we find that treatment had statistically significant gains in anemia and test scores among children with higher treatment compliance. We further estimate that the intervention was very cost effective and can potentially be scaled up rather easily.

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Preference for Boys, Family Size, and Educational Attainment in India

RePEc: Research Papers in Economics (2015)

Adriana D. Kugler Santosh Kumar

Using data from nationally representative household surveys, we test whether Indian parents make trade-offs between the number of children and investments in education and health of their children. To address the endogeneity due to the joint determination of quantity and quality of children by parents, we instrument family size with the gender of the first child which is plausibly random. Given a strong son-preference in India, parents tend to have more children if the first born is a girl. Our IV results show that children from larger families have lower educational attainment and are less likely to have ever been enrolled and to be currently enrolled in school, even after controlling for parents’ characteristics and birth-order of children. The effects are larger for rural, poorer and low-caste families and for families with less educated mothers. On the other hand, we find no evidence of a trade-off for health outcomes.

Endogeneity

Caste

Educational Attainment

Girl

Instrumental variable

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table_1.do

Harvard Dataverse (2020)

Santosh Kumar Marion Krämer Sebastián Vollmer

STATA