Estimating Vulnerability to Poverty using Panel data: Evidence from Indonesia

Etudes & documentsTraditional poverty measures fail to indicate the degree of risk of becoming or remaining poor that households are confronted to. They can therefore be misleading in the context of implementing poverty reduction policies. In this paper I propose a method to estimate an index of ex ante vulnerability to poverty, defined as the probability of being poor in the (near) future given current observable characteristics, using panel data. This method relies on the estimation of the expected mean and variance of future consumption conditional on current consumption and observable characteristics. It generates a vulnerability index, or predicted probability of future poverty, which performs well in predicting future poverty, including out of sample. About 80% of households with a 2000 vulnerability index of 100% are actually poor in 2007. This approach provides information on the population groups that have a high probability of becoming or remaining poor in the future, whether currently poor or not. It is therefore useful to complement traditional poverty measures such as the poverty headcount, in particular for the design and planning of poverty reduction policies

Finding the Best Indicators to Identify the Poor

Etudes & documentsProxy-means testing (PMT) is a method used to assess household or individual welfare level based on a set of observable indicators. The accuracy, and therefore usefulness of PMT relies on the selection of indicators that produce accurate predictions of household welfare. In this paper I propose a method to identify indicators that are robustly and strongly correlated with household welfare, measured by per capita consumption. From an initial set of 340 candidate variables drawn from the Indonesian Family Life Survey, I identify the variables that contribute most significantly to model predictive performance and that are therefore desirable to be included in a PMT formula. These variables span the categories of household private asset holdings, access to basic domestic energy, education level, sanitation and housing. A comparison of the predictive performance of PMT formulas including 10, 20 and 30 of the best predictors of welfare shows that leads to recommending formulas with 20 predictors. Such parsimonious models have similar predictive performance as the PMT formulas currently used in Indonesia, although these latter are based on models of 32 variables on average

Civil Conflicts and Regional Economic Integration Outcomes in Africa

Civil conflicts are a major challenge to the economic development of a country and its neighbors. The present article analyzes the consequences of conflicts on regional economic integration outcomes among African nations. Our findings document that civil conflicts affect the economic fate of regional economic communities through their negative substantial impact on business cycle synchronicity. Yet, contrary to the findings of previous studies on the effects of conflict on bilateral trade flows, we show that experiencing conflict increases regional trade intensities. This only holds in the short run and is explained by a decrease in the conflict country’s total trade and output, as well as by an increase in its intra-regional trade flows. By assessing the effect of conflict on regional economic integration processes, this paper highlights that intrastate political events are also a major regional constraint. We therefore find an additional reason to recommend that prevention and resolution of civil conflicts might be put on the top of the political agenda of African Regional Economic Communities.Civil Conflict, Regional Economic Integration, Africa

Conflict, Ideology and Foreign Aid

In this paper, we present a rent-seeking model of conflict, which highlights the role of ideology in determining whether the government or the rebels take the initiative. We use the model to interpret the impact of a large-scale Community-Driven Development project on civil conflict in the Philippines. The country is characterized by the presence of two rebel groups, the New People's Army (NPA) and the Moro Islamic Liberation Front (MILF), with two distinct ideologies. We use a unique geo-referenced panel dataset on the occurrence of conflicts in 2003 and 2006 gathered from local newspapers that we match with nationally representative household survey and budget data on all municipalities in the country. Consistent with our model's predictions, using a variety of estimation strategies, we find robust evidence that the project leads to a decline in MILF-related events and to an increase in NPA-related events.Civil Conflict;foreign aid;Rent Seeking;Community-Driven Development;philippines

Conflict, Ideology and Foreign Aid

In this paper, we present a rent-seeking model of conflict, which highlights the role of ideology in determining whether the government or the rebels take the initiative. We use the model to interpret the impact of a large-scale Community-Driven Development project on civil conflict in the Philippines. The country is characterized by the presence of two rebel groups, the New People's Army (NPA) and the Moro Islamic Liberation Front (MILF), with two distinct ideologies. We use a unique geo-referenced panel dataset on the occurrence of conflicts in 2003 and 2006 gathered from local newspapers that we match with nationally representative household survey and budget data on all municipalities in the country. Consistent with our model's predictions, using a variety of estimation strategies, we find robust evidence that the project leads to a decline in MILF-related events and to an increase in NPA-related events.Civil Conflict, foreign aid, Rent Seeking, Community-Driven Development, philippines

Conflict, Ideology and Foreign Aid

In this paper, we present a rent-seeking model of conflict, which highlights the role of ideology in determining whether the government or the rebels take the initiative. We use the model to interpret the impact of a large-scale Community-Driven Development project on civil conflict in the Philippines. The country is characterized by the presence of two rebel groups, the New People's Army (NPA) and the Moro Islamic Liberation Front (MILF), with two distinct ideologies. We use a unique geo-referenced panel dataset on the occurrence of conflicts in 2003 and 2006 gathered from local newspapers that we match with nationally representative household survey and budget data on all municipalities in the country. Consistent with our model's predictions, using a variety of estimation strategies, we find robust evidence that the project leads to a decline in MILF-related events and to an increase in NPA-related events

Finding the Poor vs. Measuring Their Poverty: Exploring the Drivers of Targeting Effectiveness in Indonesia.

Centralised targeting registries are increasingly used to allocate social assistance benefits in developing countries. This paper provides the first attempt to identify the relative importance of two key design issues for targeting accuracy: (1) which households to survey for inclusion in the targeting registry and (2) how to rank surveyed households. We evaluate the performance of Indonesia’s Unified Database for Social Protection Programmes (UDB), the largest targeting registry in the world, which is used to provide social assistance to more than 25 million households. Linking administrative data with an independent household survey, we find that the UDB system is more progressive than previous targeting approaches used in Indonesia, leading to a decrease in benefit leakage to non-poor households. However, if poor households are not surveyed in the first place, even a perfect ranking method cannot prevent their exclusion. Under a simulation that considers enumerating and estimating proxy-means testing (PMT) scores for all households (as in a census), we estimate a one-third decrease in undercoverage compared to focusing on households that have been registered in the UDB. Investigating household- and community-level correlates of misenumeration and misclassification, we find evidence that local communities use different definitions of poverty and have better information on the welfare status of their members

Evaluation of antimycobacterial activity of medicinal plants used by Malian traditional medicine practitioners to treat tuberculosis

Global Tuberculosis (TB) control is facing major challenges such as occurrence of multidrug-resistant (MDR) and extensively drug-resistant tuberculosis (XDR). The current TB drugs are getting less effective and associated with side effects limiting their use, especially with MDR and XDR infected patients. In Mali, many medicinal plants are used against various diseases including bacterial infections. The study aimed at studying the antimycobacterial activities of 60 extracts from 22 Malian medicinal. The antibacterial activity against Mycobacterium tuberculosis H37Rv was assessed employing micro-broth dilution method. Out of 60 extracts evaluated, eleven from nine different plants were found to be active against H37Rv strain. The minimal inhibitory concentrations (MICs) ranked from 125 μg/mL to 1250 μg/mL. The most active extracts (125 μg/mL) were represented by ethanolic extract of Saba senegalensis and Vitellaria paradoxa leaves, dichloromethane extract of Cola cordifolia leaves, Strychnos spinosa and Ximenia Americana roots. Ethanolic extract of Zizyphus mauritiana, Guiera senegalensis and methanolic extract of Anthocleista djalonensis also prevented the growth of H37Rv at 250 μg/mL. The results suggest that Saba senegalensis, Vitellaria paradoxa, Cola cordifolia, Strychnos spinosa and Ximenia Americana could be potential sources of antimycobacterial molecule

Improvement in Oral Health-Related Quality of Life of Adult Patients After Rehabilitation with Partial Dentures: A Systematic Review and Meta-Analysis

[[abstract]]Background: Loss of teeth has a negative influence on essential oral functions such as phonetics, mastication, and aesthetics. Dentists treat people with prosthodontic rehabilitation to recover essential oral functions. The oral health quality of life inventory reflects the success of prosthodontic rehabilitation. It is important to understand patients’ perceptions about the impacts of rehabilitation options on their oral health‐related quality of life and satisfaction. Significant changes in the oral health of patients have resulted in a partially dentate population with a decreased prevalence of edentulism. In many countries, the current conventional care delivered to replace missing teeth for adult patients involves the provision of removable partial dentures. Aim: The aim of this systematic review and meta-analysis is to gather the best available evidence to determine patients’ oral health-related quality of life improvement after treatment with partial dentures. Methods: We searched electronic databases from January 2010 to September 2019, including PubMed, ProQuest, Science Direct, Scopus and Google Scholar. In this paper, studies were included only if the average age was 30 years and above and also published in English. Two reviewers independently screened and selected all the references based on inclusion criteria using the PRISMA guideline, and assessed the quality of the included references using the Joanna Briggs Institute quality assessment tools. Data extracted were analyzed in RevMan 5.0 software, the heterogeneity between the studies was assessed using Forest plot, I2 statistics and chi-square test with a statistical P value less than 0.05 to indicate statistical significance. Random effect models were used in case of moderate or high heterogeneity. Four studies were included in the systematic review and three studies were pooled for meta-analysis. Results: Four studies included in the systematic review and three studies in the meta-analysis with a total of 285 patients comparing the improvement in oral health-related quality of life before and after rehabilitation with partial denture, the pooled results showed a better improvement of oral health-related quality of life after treatment with partial dentures (Mean Difference 5.25; 95% CI [3.81, 6.68], P < 0.00001) favoring the wearing of partial dentures. In order to ascertain the reliability of the included studies for meta-analysis: Risk of bias was assessed and found to be low in all included studies for meta-analysis using the Cochrane collaboration tool for risk of bias assessment. Conclusion: There is high evidence that rehabilitation with partial dentures can improve the patient’s oral health-related quality of life measured with Oral Health Impact Profile 14. This review has clinical evidence value for dentists treating the expanding vulnerable adult population

Essays on Development Policies : Social Protection, Community-Based Development and Regional Integration

Cette thèse propose une analyse de certaines des politiques considérées actuellement comme étant des éléments-clé de toute stratégie de développement, avec l’objectif de contribuer au récent débat sur le développement international. Je considère en particulier l’élaboration, la mise en oeuvre et l’évaluation des politiques de protection sociale, de développement participatif et d’intégration régionale. Le premier chapitre repose sur l’idée que, pour être efficaces en matière de réduction de la pauvreté, les politiques de protection sociale doivent avoir pour double objectif de permettre aux ménages pauvres d’accéder à des ressources suffisantes pour satisfaire leurs besoins de base, ainsi que de réduire le risque auquel les ménages non pauvres sont confrontés de voir leur niveau de bien-être diminuer sous le seuil de pauvreté. Je propose une méthode permettant d’estimer le degré de vulnérabilité à la pauvreté des ménages. La vulnérabilité est ici définie comme la probabilité pour un ménage de se trouver sous le seuil de pauvreté dans le futur, étant données ses caractéristiques actuelles. Dans le second chapitre, je me place dans un contexte de ciblage des programmes de protection sociale par un score approximant le niveau de vie (proxy-means testing). La précision, et donc l’efficacité, de cette approche pour identifier les ménages pauvres dépendent de la capacité à prédire avec exactitude le niveau de bien-être des ménages, laquelle découle de la sélection de variables pertinentes. Je propose une méthode basée sur l’estimation d’un échantillon aléatoire de modèles de consommation, pour identifier les variables dont la corrélation avec le bien-être des ménages est à la fois élevée et robuste. Ces variables appartiennent à différentes catégories, y compris la possession de biens durables, l’accès aux services d’énergie domestique et d’assainissement, la qualité et le statut d’occupation du logement, et le niveau d’éducation des membres du ménage. Les troisième et quatrième chapitres de cette thèse proposent une analyse ex-post des politiques de développement, et portent en particulier sur les conséquences inattendues d’un programme de développement participatif et les raisons de l’insuffisante performance de politiques d’intégration régionale, respectivement. Le troisième chapitre évalue dans quelle mesure la réaction des deux groupes rebelles présents aux Philippines face à la mise en oeuvre d’un programme participatif d’aide au développement est compatible avec l’idée que ces deux groupes ont différentes idéologies, caractéristiques et raisons pour lutter contre le gouvernement. Il utilise une base de données collectées en utilisant les reportages d’un journal local concernant les épisodes de guerre impliquant ces deux groupes, ainsi que les prédictions d’un modèle d’insurrection basé sur la recherche de rente (rent-seeking). Les résultats sont conformes à la classification proposée de ces deux groupes rebelles ; leur réaction face au projet dépend de leur position idéologique. Le dernier chapitre analyse l’impact des guerres civiles en Afrique sur la performance des communautés économiques régionales, approximée par la synchronisation des cycles économiques des différents partenaires régionaux. Les résultats montrent que la synchronisation des cycles économiques diminue avec l’occurrence de guerres civiles, non seulement pour les pays directement affectés, mais également pour leurs voisins en paix.In this thesis, I aim to contribute to the recent international development debate, by providing an analysis of some of the policies that are considered key elements of a development strategy. Focusing on social protection, community-based development and regional integration, I consider aspects related to their design, implementation and evaluation. In the first chapter, I propose a method to estimate ex ante vulnerability to poverty, defined as the probability of being poor in the near future given one’s current characteristics. This is based on the premise that effective social protection policies should aim not only to help the poor move out of poverty, but also to protect the vulnerable from falling into it. In the second chapter, I consider the issue of identifying the poor in a context of targeting social protection programs using a Proxy-Means Testing (PMT) approach, which precision, and therefore usefulness relies on the selection of indicators that produce accurate predictions of household welfare. I propose a method based on model random sampling to identify indicators that are robustly and strongly correlated with household welfare, measured by per capita consumption. These indicators span the categories of household private asset holdings, access to basic domestic energy, education level, sanitation and housing. The third and fourth chapters of this thesis provide an ex-post analysis of development policies and focus in particular on the unintended consequences of a community-driven program and on the reasons for the lack of progress in regional economic integration. The third chapter assesses whether the reaction of the two distinct rebel groups that operate in the Philippines to the implementation of a large-scale community-driven development project funded by foreign aid is consistent with the idea that these two groups have different ideologies, characteristics and motives for fighting. It is based on a unique geo-referenced dataset that we collected from local newspaper reports on the occurrence of conflict episodes involving these rebel groups, and on the predictions of a rent-seeking model of insurgency. The findings are consistent with the proposed classification of the rebel groups; the impact of the foreign aid project on each rebel group depends on their ideological stance. In the last chapter, I analyze how civil conflicts affect the economic fate of African regional economic communities through its effect on the synchronicity of regional partners’ economies. I find that conflict decreases business cycle synchronicity when it occurs within a regional economic community, both for the directly affected countries and for their more peaceful regional peers