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Economics

Research Collection School Of Economics

Poverty

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Full-Text Articles in Social and Behavioral Sciences

Spatial Disaggregation Of Poverty And Disability: Application To Tanzania, Tomoki Fujii Aug 2023

Spatial Disaggregation Of Poverty And Disability: Application To Tanzania, Tomoki Fujii

Research Collection School Of Economics

Estimating poverty measures for disabled people in developing countries is often difficult, partly because relevant data are not readily available. We extend the small-area estimation developed by Elbers, Lanjouw and Lanjouw (2002, 2003) to estimate poverty by the disability status of the household head, when the disability status is unavailable in the survey. We propose two alternative approaches to this extension: Aggregation and Instrumental Variables Approaches. We apply these approaches to data from Tanzania and show that both approaches work. Our estimation results show that disability is indeed positively associated with poverty in every region of mainland Tanzania.


Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide Jun 2020

Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide

Research Collection School Of Economics

It is costly to collect the household- and individual-level data that underlies official estimates of poverty and health. For this reason, developing countries often do not have the budget to update their estimates of poverty and health regularly, even though these estimates are most needed there. One way to reduce the financial burden is to substitute some of the real data with predicted data. An approach referred to as double sampling collects the expensive outcome variable for a sub-sample only while collecting the covariates used for prediction for the full sample. The objective of this study is to determine if …


Climate Change And Vulnerability To Poverty: An Empirical Investigation In Rural Indonesia, Tomoki Fujii Sep 2016

Climate Change And Vulnerability To Poverty: An Empirical Investigation In Rural Indonesia, Tomoki Fujii

Research Collection School Of Economics

Scientists estimate that anthropogenic climate change leads to increased surface temperature, sea-level rise, more frequent and significant extreme weather and climate events, among others. In this study, we investigate how climate change can potentially change the vulnerability to poverty using a panel data set in Indonesia. We focus on the effect of drought and flood, two of the commonly observed disasters there. Our simulation results indicate that vulnerability to poverty may increase substantially as a result of climate change in Indonesia.


Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide Sep 2016

Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide

Research Collection School Of Economics

It is costly to collect the household- andindividual-level data that underlies official estimates of poverty and health. Forthis reason, developing countries often do not have the budget to update their estimatesof poverty and health regularly, even though these estimates are most neededthere. One way to reduce the financial burden is to substitute some of the realdata with predicted data. An approach referred to as double sampling collectsthe expensive outcome variable for a sub-sample only while collecting thecovariates used for prediction for the full sample. The objective of this studyis to determine if this would indeed allow for realizing meaningful reductionsin …


Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide Sep 2016

Is Predicted Data A Viable Alternative To Real Data?, Tomoki Fujii, Roy Van Der Weide

Research Collection School Of Economics

It is costly to collect the household- and individual-level data that underlies official estimates of poverty and health. For this reason, developing countries often do not have the budget to update their estimates of poverty and health regularly, even though these estimates are most needed there. One way to reduce the financial burden is to substitute some of the real data with predicted data. An approach referred to as double sampling collects the expensive outcome variable for a sub-sample only while collecting the covariates used for prediction for the full sample. The objective of this study is to determine if …


Concepts And Measurement Of Vulnerability To Poverty And Other Issues: A Review Of Literature, Tomoki Fujii Sep 2016

Concepts And Measurement Of Vulnerability To Poverty And Other Issues: A Review Of Literature, Tomoki Fujii

Research Collection School Of Economics

This paper reviews the growing body of literature on vulnerability. We first provide a survey of existing studies on the concepts and measurements of vulnerability to poverty by classifying them into welfarist, expected poverty, and axiomatic approaches. We then review a number of empirical studies on vulnerability to poverty in Asia and elsewhere. This review shows that poverty and vulnerability are related, but different, and that key determinants of vulnerability often include education and location. We also briefly review other areas of vulnerability analysis such as vulnerability to climate change and offer various policy implications arising from vulnerability analysis.


Economic Transition And Growth, Peter C. B. Phillips, Donggyu Sul Nov 2009

Economic Transition And Growth, Peter C. B. Phillips, Donggyu Sul

Research Collection School Of Economics

Some extensions of neoclassical growth models are discussed that allow for cross-section heterogeneity among economies and evolution in rates of technological progress over time. The models offer a spectrum of transitional behavior among economies that includes convergence to a common steady-state path as well as various forms of transitional divergence and convergence. Mechanisms for modeling such transitions, measuring them econometrically, assessing group behavior and selecting subgroups are developed in the paper. Some econometric issues with the commonly used augmented Solow regressions are pointed out, including problems of endogeneity and omitted variable bias which arise under conditions of transitional heterogeneity. Alternative …


How Well Can We Target Aid With Rapidly Collected Data? Empirical Results For Poverty Mapping From Cambodia, Tomoki Fujii Oct 2008

How Well Can We Target Aid With Rapidly Collected Data? Empirical Results For Poverty Mapping From Cambodia, Tomoki Fujii

Research Collection School Of Economics

We compare commune-level poverty rankings in Cambodia based on three different methods: small-area estimation, principal component analysis using aggregate data, and interviews with local leaders. While they provide reasonably consistent rankings, the choice of the ranking method matters. In order to assess the potential losses from moving away from census-based poverty mapping, we used the concentration curve. Our calculation shows that about three-quarters of the potential gains from geographic targeting may be lost by using aggregate data. The usefulness of aggregate data in general would depend on the cost of data collection.


Two-Sample Estimation Of Poverty Rates For Disabled People: An Application To Tanzania, Tomoki Fujii Jan 2008

Two-Sample Estimation Of Poverty Rates For Disabled People: An Application To Tanzania, Tomoki Fujii

Research Collection School Of Economics

Estimating poverty measures for disabled people in developing countries is di cult, partly because relevant data are not available. We develop two methods to estimate poverty by the disability status of the household head. We extend the small-area estimation proposed by Elbers, Lanjouw and Lanjouw (2002, 2003) so that we can run a regression on head's disability status even when such information is unavailable in the survey. We do so by aggregation and by moment adjusted two sample instrumental variable estimation. Our results from Tanzania show that both methods work well, and that disability is indeed associated with poverty.


Poverty Alleviation Through Geographic Targeting, Chris Elbers, Tomoki Fujii, Peter Lanjouw, Berk Ozler, Wesley Yin May 2007

Poverty Alleviation Through Geographic Targeting, Chris Elbers, Tomoki Fujii, Peter Lanjouw, Berk Ozler, Wesley Yin

Research Collection School Of Economics

In this paper, we employ recently completed “poverty maps” for three countries as tools for an ex ante evaluation of the distributional incidence of geographic targeting of public resources. We simulate the impact on poverty of transferring an exogenously given budget to geographically defined sub-groups of the population according to their relative poverty status. We find large gains from targeting smaller administrative units, such as districts or villages. However, these gains are still far from the poverty reduction that would be possible had the planners had access to information on household level income or consumption. Our results indicate that a …