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新健康产品的短期补贴与长期采用:来自一项实地实验的证据

SHORT-RUN SUBSIDIES AND LONG-RUN ADOPTION OF NEW HEALTH PRODUCTS: EVIDENCE FROM A FIELD EXPERIMENT.

作者信息

Dupas Pascaline

机构信息

Dept. of Economics, Stanford University, 579 Serra Mall, Stanford, CA 94305, U.S.A.;

出版信息

Econometrica. 2014 Jan;82(1):197-228. doi: 10.3982/ECTA9508.


DOI:10.3982/ECTA9508
PMID:25308977
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4193678/
Abstract

Short-run subsidies for health products are common in poor countries. How do they affect long-run adoption? A common fear among development practitioners is that one-off subsidies may negatively affect long-run adoption through reference-dependence: People might anchor around the subsidized price and be unwilling to pay more for the product later. But for experience goods, one-off subsidies could also boost long-run adoption through learning. This paper uses data from a two-stage randomized pricing experiment in Kenya to estimate the relative importance of these effects for a new, improved antimalarial bed net. Reduced form estimates show that a one-time subsidy has a positive impact on willingness to pay a year later inherit. To separately identify the learning and anchoring effects, we estimate a parsimonious experience-good model. Estimation results show a large, positive learning effect but no anchoring. We black then discuss the types of products and the contexts inherit for which these results may apply.

摘要

在贫穷国家,对保健产品的短期补贴很常见。它们如何影响长期采用情况呢?发展从业者普遍担心的是,一次性补贴可能会通过参照依赖对长期采用产生负面影响:人们可能会以补贴价格为参照,日后不愿为该产品支付更高价格。但对于经验商品而言,一次性补贴也可能通过学习促进长期采用。本文利用肯尼亚一项两阶段随机定价实验的数据,来估计这些影响对于一种新型改良抗疟蚊帐的相对重要性。简化形式估计表明,一次性补贴对一年后的支付意愿有积极影响。为了分别识别学习效应和参照效应,我们估计了一个简约的经验商品模型。估计结果显示出很大的积极学习效应,但没有参照效应。然后我们讨论了这些结果可能适用的产品类型和背景情况。

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本文引用的文献

[1]
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Am Econ Rev. 2014-7

[2]
What Matters (and What Does Not) in Households' Decision to Invest in Malaria Prevention?

Am Econ Rev. 2009-5

[3]
Learning, Misallocation, and Technology Adoption: Evidence from New Malaria Therapy in Tanzania.

Rev Econ Stud. 2014

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Annu Rev Econom. 2010-9-1

[5]
Global, regional, and national causes of child mortality: an updated systematic analysis for 2010 with time trends since 2000.

Lancet. 2012-5-11

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The end of poverty: economic possibilities for our time.

Eur J Dent Educ. 2008-2

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PLoS Med. 2007-7

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Cochrane Database Syst Rev. 2004

[9]
How many child deaths can we prevent this year?

Lancet. 2003-7-5

[10]
Community-wide effects of permethrin-treated bed nets on child mortality and malaria morbidity in western Kenya.

Am J Trop Med Hyg. 2003-4

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