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Small cash rewards for big losers : experimental insights into the fight against the obesity epidemic (English)

This paper examines the sustainability of weight loss achieved through cash rewards and, for the first time, the potential of monetary incentives to prevent weight cycling. ... See More +

Policy Research Working Paper WPS7339 JUN 26, 2015

Augurzky,Boris; Bauer,Thomas K.; Reichert,Arndt Rudiger; Schmidt,Christoph M.; Tauchmann,Harald

Small firms’ formalization : the stick treatment (English)

Firm informality is pervasive throughout the developing world, Bangladesh being no exception. The informal status of many firms substantially reduces the tax basis and therefore impacts the provision of public goods. ... See More +

Policy Research Working Paper WPS7318 JUN 22, 2015

De Giorgi,Giacomo; Ploenzke,Matthew; Rahman,Aminur

Extending the school day in Latin America and the Caribbean (English)

Countries throughout Latin America and the Caribbean are reforming their education systems with the view of adding more hours to the school day. ... See More +

Policy Research Working Paper WPS7309 JUN 16, 2015

Holland,Peter Anthony; Alfaro,Pablo; Evans,David

Teacher performance pay : Experimental evidence from Pakistan (English)

This paper presents evidence from the first three years of a randomized controlled trial of a government-administered pilot teacher performance pay program in Punjab, Pakistan. ... See More +

Policy Research Working Paper WPS7307 JUN 15, 2015

Barrera-Osorio,Felipe; Raju,Dhushyanth

A behavioral approach to water conservation: evidence from Costa Rica (English)

This paper presents the design a set of three simple and replicable behavioral interventions, which use stickers that can be added to water bills at low cost, and test their impact on water consumption in Belen, Costa Rica, using a randomized control trial. ... See More +

Policy Research Working Paper WPS7283 JUN 02, 2015

Datta,Saugato; Miranda,Juan José; Zoratto,Laura De Castro; Calvo-Gonzalez,Oscar; Darlingm,Matthew; Lorenzana,Karina Josephine Orduna

Transport infrastructure and welfare : an application to Nigeria (English)

Transport infrastructure is deemed to be central to development and consumes a large fraction of the development assistance envelope. Yet there is debate about the economic impact of road projects. ... See More +

Policy Research Working Paper WPS7271 MAY 18, 2015

Ali,Rubaba; Barra,Alvaro Federico; Berg,Claudia N.; Damania,Richard; Nash,John D.; Russ,Jason Daniel

Infrastructure in conflict-prone and fragile environments : evidence from the Democratic Republic of Congo (English)

In conflict-prone situations, access to markets is necessary to restore economic growth and generate the preconditions for peace and reconstruction. ... See More +

Policy Research Working Paper WPS7273 MAY 18, 2015

Ali,Rubaba; Barra,Alvaro Federico; Berg,Claudia N.; Damania,Richard; Nash,John D.; Russ,Jason Daniel

Road improvement and deforestation in the Congo Basin countries (English)

Road construction has often been viewed as the precursor to deforestation, especially in tropical forests. Traditional responses to such threats have been reactive, with attempts to mitigate impacts through physical measures, or the establishment of protected areas. ... See More +

Policy Research Working Paper WPS7274 MAY 18, 2015

Damania,Richard; Wheeler,David J.

Agricultural technology choice and transport (English)

This paper addresses an old and recurring theme in development economics: the slow adoption of new technologies by farmers in many developing countries. ... See More +

Policy Research Working Paper WPS7272 MAY 18, 2015

Ali,Rubaba; Barra,Alvaro Federico; Berg,Claudia N.; Damania,Richard; Nash,John D.; Russ,Jason Daniel

Do public health interventions crowd out private health investments ? Malaria control policies in Eritrea (English)

It is often argued that engaging in indoor residual spraying in areas with high coverage of mosquito bed nets may discourage net ownership and use. ... See More +

Policy Research Working Paper WPS7268 MAY 15, 2015

Carneiro,Pedro; Armand,Alex; Locatelli,Andrea; Mihreteab,Selam; Keating,Joseph Aaron

Social and economic impacts of rural road improvements in the state of Tocantins, Brazil (English)

The aim of this paper is to provide feedback on the question of socioeconomic benefits from rural road development and the impact of transport infrastructure on the poor, particularly the poorest and the bottom 20 percent of the population. ... See More +

Policy Research Working Paper WPS7249 APR 23, 2015

Iimi,Atsushi; Lancelot,Eric R.; Manelici,Isabela; Ogita,Satoshi

Program evaluation and spillover effects (English)

This paper is a practical guide for researchers and practitioners who want to understand spillover effects in program evaluation. The paper defines spillover effects and discusses why it is important to measure them. ... See More +

Policy Research Working Paper WPS7243 APR 21, 2015

Angelucci,M.; Di Maro,Vincenzo

Parental human capital and effective school management : evidence from The Gambia (English)

Education systems in developing countries are often centrally managed in a top-down structure. In environments where schools have different needs and where localized information plays an important role, empowerment of the local community may be attractive, but low levels of human capital at the local level may offset gains from local information. ... See More +

Policy Research Working Paper WPS7238 APR 13, 2015

Blimpo,Moussa P.; Evans,David; Lahire,Nathalie

Information, knowledge and behavior: evaluating alternative methods of delivering school information to parents (English)

Improving education outcomes by disseminating information to parents and thereby encouraging them to become more actively engaged in school oversight is attractive, since it can be done relatively cheaply. ... See More +

Policy Research Working Paper WPS7233 APR 06, 2015

Cerdan-Infantes,Pedro; Filmer,Deon P.

Report cards : the impact of providing school and child test scores on educational markets (English)

This paper studies study the impact of providing school and child test scores on subsequent test scores, prices, and enrollment in markets with multiple public and private providers. ... See More +

Policy Research Working Paper WPS7226 MAR 30, 2015

Andrabi,Tahir; Das,Jishnu; Khwaja,Asim Ijaz

An evaluation of the 2014 subsidy reforms in Morocco and a simulation of further reforms (English)

Under increasing budget pressure, Morocco carried out an extensive set of subsidy reforms in 2014 and is planning for further reforms for 2015–2017, which will eliminate most consumers subsidies. ... See More +

Policy Research Working Paper WPS7224 MAR 30, 2015

Verme,Paolo; El Massnaoui,Khalid

Using lotteries to incentivize safer sexual behavior : evidence from a randomized controlled trial on HIV prevention (English)

Financial incentives are a promising HIV prevention strategy. This paper assesses the effect on HIV incidence of a lottery program in Lesotho with low expected payments but a chance to win a high prize conditional on negative test results for sexually transmitted infections. ... See More +

Policy Research Working Paper WPS7215 MAR 18, 2015

Nyqvist,Martina Björkman; Corno,Lucia; De Walque,Damien B. C. M.; Svensson,Jakob

Trade effects of customs reform : evidence from Albania (English)

Despite enormous academic interest in international trade costs and keen policy interest in efforts to mitigate them, so far there is very little hard evidence on the impacts of trade facilitation efforts. ... See More +

Policy Research Working Paper WPS7210 MAR 10, 2015

Fernandes,Ana Margarida; Hillberry,Russell Henry; Mendoza Alcantara,Alejandra

Debiasing on a roll: changing gambling behavior through experiential learning (English)

This paper tests experiential learning as a debiasing tool against gambling and lottery behavior in South Africa. The study implemented a simple, interactive dice game that simulates worsening winning odds of rolling sixes as more dice are added to the game. ... See More +

Policy Research Working Paper WPS7195 FEB 01, 2015

Abel , Martin; Cole, Shawn; Zia, Bilal

Impact evaluation helps deliver development projects (English)

Does research add value to aid? Specifically, does impact evaluation research help or hinder the delivery of development projects? This paper analyzes the question by constructing a new data set of 100 impact evaluations and 1,135 projects approved by the World Bank between 2005 and 2011. ... See More +

Policy Research Working Paper WPS7157 JAN 01, 2015

Legovini, Arianna; Di Maro, Vincenzo; Piza, Caio

Title Document Date Report No. Document Type Also available in
Small cash rewards for big losers : experimental insights into the fight against the obesity epidemic (English)
See More +
JUN 26, 2015 WPS7339 Policy Research Working Paper
Small firms’ formalization : the stick treatment (English)
See More +
JUN 22, 2015 WPS7318 Policy Research Working Paper
Extending the school day in Latin America and the Caribbean (English)
See More +
JUN 16, 2015 WPS7309 Policy Research Working Paper
Teacher performance pay : Experimental evidence from Pakistan (English)
See More +
JUN 15, 2015 WPS7307 Policy Research Working Paper
A behavioral approach to water conservation: evidence from Costa Rica (English)
See More +
JUN 02, 2015 WPS7283 Policy Research Working Paper
Transport infrastructure and welfare : an application to Nigeria (English)
See More +
MAY 18, 2015 WPS7271 Policy Research Working Paper
Infrastructure in conflict-prone and fragile environments : evidence from the Democratic Republic of Congo (English)
See More +
MAY 18, 2015 WPS7273 Policy Research Working Paper
Road improvement and deforestation in the Congo Basin countries (English)
See More +
MAY 18, 2015 WPS7274 Policy Research Working Paper
Agricultural technology choice and transport (English)
See More +
MAY 18, 2015 WPS7272 Policy Research Working Paper
Do public health interventions crowd out private health investments ? Malaria control policies in Eritrea (English)
See More +
MAY 15, 2015 WPS7268 Policy Research Working Paper
Social and economic impacts of rural road improvements in the state of Tocantins, Brazil (English)
See More +
APR 23, 2015 WPS7249 Policy Research Working Paper
Program evaluation and spillover effects (English)
See More +
APR 21, 2015 WPS7243 Policy Research Working Paper
Parental human capital and effective school management : evidence from The Gambia (English)
See More +
APR 13, 2015 WPS7238 Policy Research Working Paper
Information, knowledge and behavior: evaluating alternative methods of delivering school information to parents (English)
See More +
APR 06, 2015 WPS7233 Policy Research Working Paper
Report cards : the impact of providing school and child test scores on educational markets (English)
See More +
MAR 30, 2015 WPS7226 Policy Research Working Paper
An evaluation of the 2014 subsidy reforms in Morocco and a simulation of further reforms (English)
See More +
MAR 30, 2015 WPS7224 Policy Research Working Paper
Using lotteries to incentivize safer sexual behavior : evidence from a randomized controlled trial on HIV prevention (English)
See More +
MAR 18, 2015 WPS7215 Policy Research Working Paper
Trade effects of customs reform : evidence from Albania (English)
See More +
MAR 10, 2015 WPS7210 Policy Research Working Paper
Debiasing on a roll: changing gambling behavior through experiential learning (English)
See More +
FEB 01, 2015 WPS7195 Policy Research Working Paper
Impact evaluation helps deliver development projects (English)
See More +
JAN 01, 2015 WPS7157 Policy Research Working Paper