Research

My research projects are in one of seven basic thrusts of my research: political economy, disability, health, natural disaster, tropical forest, spatial analysis, and theory. Many of my projects have been funded by Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Scientific Research (KAKENHI) as well as other research grants. 

Political Economy

Conflict, preference, behavior, health, and Covid-19 in Cambodia

This project examines COVID-19, health, and preference; the impacts of landmine on risk preference and behaviors; and the impacts of conflicts on social preference and integration. 

Crime, community policing, and Covid-19 in Brazil

This project examines the impacts of COVID-19 on crime and the impacts of community policing on crime and regional socio-economic outcomes in Sao Paulo State. 

Institutions and political economy of development in Cambodia

This project examines effects of institutions such as social norms formed under the Pol Pot regime, the formation of local political power after the Pol Pot regime, and its impacts on local development. 

Kinship in rural Fiji 

This project draws on my primary household and community survey data. Major topics include chieftaincy, household private transfers, and fraud victimization. 


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Disability

Conflict, poverty, and disabilities in Africa

This project examines the conflict-poverty-disability nexus in various countries in Africa.

Ethnicity, disability, and vocational training in Rwanda

This project examines the impacts of JICA's vocational training on economic, psychological, and social outcomes among disabled working-age adults - both civilians and ex-combatants with different ethnic background - in Rwanda.

Poverty, disability, and vocational training in Cambodia

This project examines the poverty-disability nexus and conducts randomized evaluation of NGO's vocational training program for disabled working-age adults, especially amputees, in landmine areas in Cambodia. 

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Health


Psychic costs of maternal health care in rural Nigeria 

This project conducts a series of randomized experiments to explore the mechanism underlying low vaccine take-up among women of childbearing age with a focus on psychic costs in northeastern Nigeria.

Antenatal care in rural Nigeria

This project conducts randomized evaluation of antenatal care in northeastern Nigeria, where antenatal care uptake is relatively uncommon and slow and infant mortality rates are among the highest in the country.


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Natural Disaster

Natural disaster and community in rural Fiji

This project draws on my primary household and community survey data. Major topics include allocation of disaster aid, risk coping, and risk sharing. 


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Tropical Forest

Peruvian Amazon Rural Livelihood and Poverty (PARLAP)

This project combines remote sensing, sub-basin community census, and community/household surveys to explore the evolution of community location and characteristics, geographical poverty traps, and targeting and evaluation of community-based programs. 

Dynamic and spatial analyses of shifting cultivation in the Peruvian Amazon

This project conducts micro dynamic and spatial analyses on shifting cultivation and landscape. 

Social network in shifting cultivation in the Peruvian Amazon

This project conducts social network analysis on shifting cultivation. 

Resource extraction among shifting cultivators in the Peruvian Amazon

This project draws on our primary household survey data gathered in the Pacaya-Samiria National Reserve.


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Spatial Analysis


Spatial data and program evaluation

Using spatial data, we develop methods for measuring the causal effects of spatial phenomena (events). We explore the possibility of their broad applications especially to public goods such as schools and health facilities.

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Theory


Theory of shifting cultivation 

My theoretical works center on the micro-dynamic modeling of shifting cultivation. Major topics include deforestation, secondary fallow forest, and soil conservation. 


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