More from these Authors

• Chapter | African Successes, Volume 2: Human Capital | 2016

  Evaluating the Effects of Large Scale Health Interventions in Developing Countries: The Zambian Malaria Initiative

  Since 2003, Zambia has been engaged in a large-scale, centrally coordinated national anti-Malaria campaign, which has become a model in sub-Saharan Africa. This paper aims at quantifying the individual and macro-level benefits of this campaign, which involved mass distribution of insecticide-treated mosquito nets, intermittent preventive treatment for pregnant women, indoor residual spraying, rapid diagnostic tests, and artemisinin-based combination therapy. We discuss the timing and regional coverage of the program and critically review the available health and program rollout data. To estimate the health benefits associated with the program rollout, we use both population-based morbidity measures from the Demographic and Health Surveys and health facility-based mortality data as reported in the national Health Management Information System. While we find rather robust correlations between the rollout of bed nets and subsequent improvements in our health measures, the link between regional spraying and individual health level appears rather weak in the data.

  Keywords: Programs; Health Pandemics; Developing Countries and Economies; Zambia;

  Citation:

  Ashraf, Nava, Gunther Fink, and David N. Weil. "Evaluating the Effects of Large Scale Health Interventions in Developing Countries: The Zambian Malaria Initiative." Chap. 1 in African Successes, Volume 2: Human Capital, edited by Sebastian Edwards, Simon Johnson, and David N. Weil. University of Chicago Press, 2016.  View Details

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• Working Paper | 2016

  Infrastructure, Incentives and Institutions

  Nava Ashraf, Edward L. Glaeser and Giacomo A.M. Ponzetto

  Cities generate negative, as well as positive, externalities; addressing those externalities requires both infrastructure and institutions. Providing clean water and removing refuse requires water and sewer pipes, but the urban poor are often unwilling to pay for the costs of that piping. Standard welfare economics teaches us that either subsidies or Pigouvian fines can solve that problem, but both solutions are problematic when institutions are weak. Subsidies lead to waste and corruption; fines lead to extortion of the innocent. Zambia has attempted to solve its problem with subsidies alone, but the subsidies have been too small to solve the “last-mile problem,” and so most poor households remain unconnected to the water and sewer system. In nineteenth-century New York, subsidies also proved insufficient and were largely replaced by a penalty-based system. We present a model that illustrates the complementarity between infrastructure and institutions and provides conditions for whether fines, subsidies, or a combination of both are the optimal response. One point of the model is that the optimal fine is often not a draconian penalty but a mild charge that is small enough to avoid extortion.

  Keywords: Motivation and Incentives; Urban Development; Organizations; City; Infrastructure; Zambia;

  Citation:

  Ashraf, Nava, Edward L. Glaeser, and Giacomo A.M. Ponzetto. "Infrastructure, Incentives and Institutions." NBER Working Paper Series, No. 21910, January 2016.  View Details

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• Article | Review of Economics and Statistics

  Savings in Transnational Households: A Field Experiment Among Migrants from El Salvador

  Nava Ashraf, Diego Aycinena, Claudia Martinez A. and Dean Yang

  While remittance flows to developing countries are very large, it is unknown whether migrants desire more control over how remittances are used. This research uses a randomized field experiment to investigate the importance of migrant control over the use of remittances. In partnership with a Salvadoran bank, we offered US-based migrants from El Salvador bank accounts in their home country into which they could send remittances. We randomly varied migrant control over El Salvador-based savings by offering different types of accounts across treatment groups. Migrants offered the greatest degree of control over savings accumulated the most savings at the partner bank, compared to others offered less or no control over savings. Effects of this treatment on savings are concentrated among migrants who expressed demand for control over remittances in the baseline survey. We also find positive spillovers of our savings intervention in the form of increased savings at other banks (specifically, banks in the U.S.). We interpret the effects we find as arising from the joint effect of the bank account offers and the marketing pitch made to study participants by our project staff.

  Keywords: migration; remittances; intrahousehold allocation; savings; Saving; Residency; Banks and Banking; Banking Industry; El Salvador; United States;

  Citation:

  Ashraf, Nava, Diego Aycinena, Claudia Martinez A., and Dean Yang. "Savings in Transnational Households: A Field Experiment Among Migrants from El Salvador." Review of Economics and Statistics 97, no. 2 (May 2015): 332–351.  View Details

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