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61. Cost-Effective Prevention of Diarrheal Diseases: A Critical Review

Author:
Michael Kremer and Alix Peterson Zwane
Publication Date:
04-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
This paper critically reviews the existing research on the cost-effective prevention and treatment of diarrheal diseases, and identifies research priorities in this area aimed at finding ways to reduce the diarrheal disease burden. In contrast to the empirical knowledge base that exists for traditional child health programs to reduce diarrheal morbidity and mortality, evidence on the relative effectiveness and cost-effectiveness of various environmental health interventions is limited and subject to significant methodological concerns. There is a limited understanding of the determinants of long-term water and sanitation technology adoption and behavior change at the individual level. Even less is known about how collective action problems in water and sanitation infrastructure maintenance can be overcome. An agenda for future research includes evaluating alternative transmission interruption mechanisms, improving understanding of the determinants of individual-level technology adoption in the water and sanitation sector, and assessing the quality of infrastructure maintenance under different management schemes.
Topic:
Health, Human Welfare, Humanitarian Aid, and Poverty

62. Performance-based Incentives for Health: Demand- and Supply-Side Incentives in the Nicaraguan Red de Protección Social

Author:
Ferdinando Regalía and Leslie Castro
Publication Date:
04-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Nicaragua's Red de Protección Social (RPS) is one of the first conditional cash transfer (CCT) programs implemented in a low-income country. Demand-side incentives, in the form of monetary transfers, are provided to poor households on condition that their children attend school and visit preventive health care providers. The design of the program is unique among CCT programs because these demand-side incentives are complemented by supply-side incentives aimed at improving the provision of health care. Health care providers are paid on the basis of their performance against predetermined targets. Both private and nonprofit health care providers contracted by the government extend the coverage of services to previously underserved areas.
Topic:
Development, Health, and Humanitarian Aid
Political Geography:
Latin America

63. Performance-Based Incentives for Health: Conditional Cash Transfer Programs in Latin America and the Caribbean

Author:
Amanda Glassman, Jessica Todd, and Marie Gaarder
Publication Date:
04-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
In order to support poor families in the developing world to seek and use health care, a multi-pronged strategy is needed on both the supply and the demand side of health care. A demand-side program called Conditional Cash Transfers (CCTs) strives to reduce poverty and also increase food consumption, school attendance, and use of preventive health care. Since 1997, seven countries in Latin America have implemented and evaluated CCT programs with health and nutrition components. The core of the program is based on encouraging poor mothers to seek preventive health services and attend health education talks by providing a cash incentive for their healthy behavior (with healthy behavior representing performance). Evaluations of these programs measured outputs in the utilization of services; health knowledge, attitudes, and practice; food consumption; the supply and quality of services; as well as outcomes in vaccination rates; nutritional status; morbidity; mortality; and fertility.
Topic:
Development, Health, and Humanitarian Aid
Political Geography:
Latin America

64. Performance-Based Incentives for Health: Six Years of Results from Supply-Side Programs in Haiti

Author:
Amanda Glassman, Jessica Todd, and Marie Gaarder
Publication Date:
04-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
USAID launched a project in 1995 to deliver basic health services in Haiti. The project began by reimbursing contracted NGOs for documented expenditures or inputs. In 1999, payment was changed to being based partly on attaining performance targets or outputs. The project also provided technical assistance to the NGOs, along with opportunities to participate in an NGO network and other cross-fertilization activities. Remarkable improvements in key health indicators have been achieved in the six years since payment for performance was phased in. Although it is difficult to isolate the effects of performance-based payment on these improved indicators from the efforts aimed at strengthening NGOs and other factors, panel regression results suggest that the new payment incentives were responsible for considerable improvements in both immunization coverage and attended deliveries. Results for prenatal and postnatal care were less significant, perhaps suggesting a strong patient behavioral element that is not under the influence of provider actions.
Topic:
Development, Health, and Humanitarian Aid
Political Geography:
Caribbean and Haiti

65. Performance-Based Incentives for Health: A Way to Improve Tuberculosis Detection and Treatment Completion?

Author:
Rena Eichler, Diana Weil, and Alexandra Beith
Publication Date:
04-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Tuberculosis is a public health emergency in Africa, Eastern Europe, and Central Asia. Of the estimated 1.7 million deaths from TB, 98 percent are in the developing world, the majority being among the poor. In order to reach the MDG and the Stop TB partnership targets for 2015, TB detection rates need to double, treatment success rates must increase to more than 7075 percent, and strategies to address HIV-associated TB and multi-drug resistant TB must be aggressively expanded. DOTS, the internationally-recommended TB control strategy is the foundation of TB control efforts worldwide. A standard recording and monitoring system built on routine service-based data allows nearly all countries in the world to track progress in case detection and treatment completion through routine monitoring. This provides a good base for measuring the impact of different strategies for improving TB control outcomes.
Topic:
Development, Health, Human Welfare, and Humanitarian Aid
Political Geography:
Africa, Central Asia, and Eastern Europe

66. Do Visas Kill? Health Effects of African Health Professional Emigration

Author:
Michael Clemens
Publication Date:
03-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The emigration of highly skilled workers can in theory lower social welfare in the migrant-sending country. If such workers produce a good whose consumption conveys a positive externality—such as nurses and doctors in a very poor country—the loss can be greater, and welfare can even decline globally. Policies to impede emigration thus have the potential to raise sending-country and global welfare. This study uses a new database of health worker emigration from Africa to test whether exogenous decreases in emigration raise the number of domestic health professionals, increase the mass availability of basic primary care, or improve a range of public health outcomes. It identifies the effect through two separate natural quasi-experiments arising from the colonial division of the African continent. These produce exogenous changes in emigration comparable to those that would result from different immigration policies in principal receiving countries. The results suggest that Africa's generally low staffing levels and poor public health conditions are the result of factors entirely unrelated to international movements of health professionals. A simple model proposes that such results would be explained by segmentation of health workforce labor markets in the sending countries. The results further suggest that emigration has caused a greater production of health workers in Africa.
Topic:
International Relations, Health, and Migration
Political Geography:
Africa

67. AIDS Treatment and Intrahousehold Resource Allocations: Children's Nutrition and Schooling in Kenya

Author:
Markus Goldstein, Joshua Graff Zivin, and Harsha Thirumurthy
Publication Date:
01-2007
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The provision of life-saving antiretroviral (ARV) treatment has emerged as a key component of the global response to HIV/AIDS, but very little is known about the impact of this intervention on the welfare of children in the households of treated persons. We estimate the impact of ARV treatment on children's schooling and nutrition outcomes using longitudinal household survey data collected in collaboration with a treatment program in western Kenya. We find that children's weekly hours of school attendance increase by over 20 percent within six months after treatment is initiated for the adult household member. For boys in treatment households, these increases closely follow their reduced market labor supply. Similarly, young children's short-term nutritional status—as measured by their weight-for-height Z-score—also improves dramatically. We also present evidence that the impact of treatment is considerably larger when compared to the counterfactual scenario of no ARV treatment. The results illustrate how intrahousehold allocations of time and resources are altered in response to significant health improvements. Since the improvements in children's schooling and nutrition at these critical early ages will affect their socio-economic outcomes and wellbeing in adulthood, the widespread provision of ARV treatment is likely to generate significant long-run welfare benefits.
Topic:
Health and Human Welfare
Political Geography:
Kenya and Africa

68. Advance Market Commitments for Vaccines Working Paper and Spread Sheet

Author:
Rachel Glennerster, Heidi Williams, Georg Weizsacker, Ruth Levine, Jean Lee, Michael R. Kremer, and Ernst R. Berndt
Publication Date:
08-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The G8 is considering committing to purchase vaccines against diseases concentrated in low-income countries (if and when desirable vaccines are developed) as a way to spur research and development on vaccines for these diseases. Under such an “advance market commitment,” one or more sponsors would commit to a minimum price to be paid per person immunized for an eligible product, up to a certain number of individuals immunized. For additional purchases, the price would eventually drop to close to marginal cost. If no suitable product were developed, no payments would be made. We estimate the offer size which would make revenues similar to the revenues realized from investments in typical existing commercial pharmaceutical products, as well as the degree to which various model contracts and assumptions would affect the cost-effectiveness of such a commitment. We make adjustments for lower marketing costs under an advance market commitment and the risk that a developer may have to share the market with subsequent developers. We also show how this second risk could be reduced, and money saved, by introducing a superiority clause to a commitment. Under conservative assumptions, we document that a commitment comparable in value to sales earned by the average of a sample of recently launched commercial products (adjusted for lower marketing costs) would be a highly cost-effective way to address HIV/AIDS, malaria, and tuberculosis. Sensitivity analyses suggest most characteristics of a hypothetical vaccine would have little effect on the cost-effectiveness, but that the duration of protection conferred by a vaccine strongly affects potential cost-effectiveness. Readers can conduct their own sensitivity analyses employing a web-based spreadsheet tool.
Topic:
Development, Economics, Health, and Markets

69. New data on African health professionals abroad

Author:
Gunilla Petterson and Michael A. Clemens
Publication Date:
08-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
The migration of doctors and nurses from Africa to developed countries has raised fears of an African medical brain drain. But empirical research on the causes and effects of the phenomenon has been hampered by a lack of systematic data on the extent of African health workers' international movements. We use destination-country census data to estimate the number of African-born doctors and professional nurses working abroad in a developed country circa 2000, and compare this to the stocks of these workers in each country of origin. Approximately 65,000 African-born physicians and 70,000 African-born professional nurses were working overseas in a developed country in the year 2000. This represents about one fifth of African-born physicians in the world, and about one tenth of African-born professional nurses. The fraction of health professionals abroad varies enormously across African countries, from 1% to over 70% according to the occupation and country. These numbers are the first standardized, systematic, occupation-specific measure of skilled professionals working in developed countries and born in a large number of developing countries.
Topic:
Development, Health, and Migration
Political Geography:
Africa

70. A Policymakers' Guide to Dutch Disease

Author:
Owen Barder
Publication Date:
07-2006
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
It is sometimes claimed that an increase in aid might cause Dutch Disease—that is, an appreciation of the real exchange rate which can slow the growth of a country's exports— and that aid increases might thereby harm a country's long-term growth prospects. This essay argues that it is unlikely that a long-term, sustained and predictable increase in aid would, through the impact on the real exchange rate, do more harm than good, for three reasons. First, there is not necessarily an adverse impact on exports from Dutch Disease, and any impact on economic growth may be small. Second, aid spent in part on improving the supply side—investments in infrastructure, education, government institutions and health—result in productivity benefits for the whole economy, which can offset any loss of competitiveness from the Dutch Disease effect. Third, the welfare of a nation's citizens depends on their consumption and investment, not just output. Even on pessimistic assumptions, the additional consumption and investment which the aid finances is larger than any likely adverse impact on output. However, the macroeconomic effects of aid can cause substantial harm if the aid is not sustained until its benefits are realized. The costs of a temporary loss of competitiveness might well exceed the benefits of the short-term increase in aid. To avoid doing harm, aid should be sustained and predictable, and used in part to promote economic growth. This maximizes the chances that the long-term productivity and growth benefits will offset the adverse effects—which may be small if they exist at all—that big aid surges may pose as a result of Dutch Disease.
Topic:
Economics, Health, and Humanitarian Aid
Political Geography:
Europe