Impact Evaluation Experts

DIME experts for each of our units


DIME Front Office
  • Arianna-Legovini, Head of Development Impact Evaluation (DIME)

    Arianna Legovini

    Head of Development Impact Evaluation (DIME)
    Arianna Legovini built and leads the Development Impact Evaluation (DIME) group of the World Bank, The purpose of this unit is to use research to improve development practice and policy outcomes. Since joining the Bank in 2004, she has worked to understand and develop the institutions (incentives and processes) required to engage researchers, operational staff and policymakers in improving the quality in the design and implementation of development projects.
  • Photo of John Loeser, Economist

    John Loeser

    Economist
    John is an Economist in Development Impact Evaluation (DIME) at the World Bank. He completed his PhD in Agricultural and Resource Economics at UC Berkeley in 2019. John is a development economist who focuses on applying theory to expand the set of questions we can answer with impact evaluations. His current research develops revealed preference methods for welfare measurement, focusing on productivity in smallholder agriculture in Bangladesh, India, Mozambique, and Rwanda.

Economic Transformation & Growth
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    Florence Kondylis

    Senior Economist, Research Program Manager
    Florence manages DIME’s unit on Economic Transformation & Growth. She joined the World Bank as a Young Professional and received a magistere in economics from the Paris School of Economics, a PhD in economics from the University of London, and was a Postdoctoral Fellow at the Earth Institute at Columbia University. Her main interests are in development, labor, conflict and agricultural economics.
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    Paul Christian

    Economist
    Paul Christian is an Economist in the Development Impact Evaluation unit of the of the World Bank. His research on agriculture and food security programs focuses on targeting and management of irrigation projects. He has led impact evaluations in India, Nepal, Mozambique, Liberia, and Ghana.
  • Dahyeon (DJ) Jeong, Economist in the Development Impact Evaluation (DIME)

    Dahyeon (DJ) Jeong

    Economist
    Dahyeon (DJ) Jeong is an Economist in the Development Impact Evaluation (DIME) unit at the World Bank. His main research interests include agriculture, labor, and social protection. He conducts policy relevant research using experimental methods in Kenya, Tanzania, Malawi, Rwanda, Mozambique, and Liberia.
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    Erin Kelley

    Economist
    Erin Kelley is an Economist in the Development Impact Evaluation (DIME) unit at the World Bank. Erin’s research focuses on issues related to labor market frictions, technology adoption in agriculture and social protection. Her work on labor markets frictions includes projects in Kenya that document how monitoring technologies improve firm productivity by helping firm owners restructure contracts, and work with a large e-commerce platform in Africa that investigates how expanding market-access for small firms affects firm growth.
  • Photo of Caio Piza, Senior Economist, World Bank

    Caio Piza

    Senior Economist
    Caio Piza is a Senior Economist on the Development Impact Evaluation unit at the World Bank, where he currently leads the impact evaluations in Trade and Competitiveness. As an applied microeconometrician his interests range from topics such as microfinance to education and labor economics. His main research now focuses on understanding the main barriers that prevent firms from adopting technologies that have private and social returns.
  • Hee Kwon Seo ("Samuel") is an Economist in Development Impact Evaluation (DIME) at the World Bank.

    Hee Kwon Seo ("Samuel")

    Economist
    Hee Kwon Seo ("Samuel") is an Economist in Development Impact Evaluation (DIME) at the World Bank. He completed his PhD in Economics at the University of Chicago Booth School of Business in 2020. He is a development economist with interests in labor, infrastructure, environment and poverty alleviation.

GENDER, ECONOMIC OPPORTUNITY & FRAGILITY
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    Marcus Holmlund

    Senior Economist, Research Program Manager
    Marcus manages DIME’s unit on Gender, Economic Opportunity (including work in health, education, and social protection and jobs), and Fragility. He is a Senior Economist and he specializes in the use of real-world impact evaluation and experimentation for policy design in collaboration with governments and works across several sectors to promote the rights and wellbeing of marginalized and poor populations.
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    Girija Borker

    Economist
    Girija Borker is an Economist in the Development Impact Evaluation (DIME) unit at the World Bank. She coordinates the gender program at DIME. Her research focuses on issues related to gender, transport, violence and urban mobility. In particular, her ongoing projects study the economic consequences of sexual harassment in public spaces, measurement of such violence and efficacy of interventions to address such violence. Her work has been featured by Quartz, The Hindustan Times, Le Monde, BBC Radio, and The New Statesman. Girija holds a PhD in Economics from Brown University, MPhil. in Economic Theory and Econometrics from Toulouse School of Economics, France, a Masters in Economics from University of Cambridge, UK and a Bachelor’s degree in Economics from St. Stephen’s College, Delhi University, India.
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    Victor Hugo Orozco-Olvera

    Senior Economist
    Victor Orozco is a Senior Economist with the Development Impact Evaluation (DIME) department in the World Bank. His research focuses on mechanisms to promote behavior change at scale and includes impact evaluations in the areas of health, education, gender and environment. He founded and leads the World Bank’s research program on Mass Media and Entertainment-Education.
  • Photo of Patrick Premand, Senior Economist, World Bank

    Patrick Premand

    Senior Economist
    Patrick Premand is a Senior Economist in the Development Impact Evaluation Group (DIME) in the research Vice-Presidency at the World Bank. He works on Social Protection and Safety Nets; Jobs, Economic Inclusion and Entrepreneurship; and Early Childhood Development. He conducts impact evaluations and policy experiments of social protection, jobs and human development programs.
  • Iva Trako is an Economist in the Development Impact Evaluation (DIME)

    Iva Trako

    Economist
    Iva Trako is an Economist in the Development Impact Evaluation (DIME) unit at the World Bank. Her main research interests include gender, education and social protection. One strand of her research studies the role of state capacity to deter and improve justice service delivery in reducing gender-based violence. In addition, she studies the underlying causes of social and economic barriers that women and girls face in developing countries and explores innovative solutions to improve their welfare. Another strand of her research examines issues on human capital and skills, service delivery, and the impact of policies and programs to improve human development outcomes. In particular, she works on measuring the quality of education systems, with a focus on early childhood development, the quality of teaching practices, and gender inequality. Iva also collaborates in DIME’s partnership with the World Food Programme (WFP) on understanding how public works and cash transfer programs can be designed to promote women’s empowerment and the resilience of vulnerable rural households in developing and humanitarian settings. Iva holds a Ph.D. in Economics from Paris School of Economics.

Governance & Institution Building
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    Vincenzo Di Maro

    Senior Economist, Research Program Manager
    Vincenzo is a Research Program Manager (Senior Economist) at the Development Impact Evaluation (DIME) department within the DEC research department of the World Bank. He leads the program in Governance and Institution Building which studies development topics related to civil service reform, public administration, justice, public financial management, tax reforms, public procurement, state capacity and decentralization. Vincenzo holds a PhD in Economics from University College London.
  • Photo of Daniel Chen, Senior Economist

    Daniel Li Chen

    Senior Economist
    Daniel Li Chen is the Lead Principal Investigator, DE JURE (Data and Evidence for Justice Reform) at the World Bank, Director of Research at the Centre National de la Recherche Scientifique (CNRS), and Professor at the Toulouse School of Economics. He is also a Senior Fellow at the Institute for Advanced Study in Toulouse, Collaborator at Harvard Medical School, advisor at NYU Courant Institute for Mathematics Center for Data Science. He is the founder of oTree Open Source Research Foundation and Data Science Justice Collaboratory and co-founder of Justice Innovation Lab. Chen was previously Chair of Law and Economics at ETH and tenure-track assistant professor in Law (primary), Economics, and Public Policy at Duke University. Chen received his BA and MS from Harvard University in Applied Mathematics and Economics; Economics PhD from MIT; and JD from Harvard Law School. He has attained prominence through the development of open source tools to study human behavior and through large-scale empirical studies — data science, artificial intelligence, and machine learning — on the relationship between law, social norms and the enforcement of legal norms, and on judicial systems.
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    Maria Ruth Jones

    Survey Specialist
    Maria Jones is a Survey Specialist in the Impact Evaluation (DIME) unit at the World Bank. At DIME, she coordinates DIME Analytics, an initiative to increase and standardize data quality across the DIME portfolio, and works on agricultural impact evaluations. Her main interests are in research methods and agricultural technology adoption.
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    Daniel Oliver Rogger

    Economist
    Daniel Rogger is a Research Economist in the Impact Evaluation Unit at the World Bank. His areas of interest are political economy, and organizational and public economics. Dan’s research aims to understand how to build organizations that effectively deliver public services. He does large scale surveys and research in collaboration with civil service organizations across the world.

Infrastructure & Climate Change
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    Aidan Coville

    Senior Economist, Research Program Manager
    Aidan manages DIME’s unit on Infrastructure and Climate Change. After completing his MSc in Statistics at University College London and MSc in Economics for Development at the University of Oxford, he joined DIME in South Africa, exploring the effects of a large-scale slum upgrading project implemented across the country. He’s a Senior Economist focusing on identifying sustainable, equitable and efficient ways to expand water, sanitation, electricity and broadband services with the aim of reducing poverty and spurring climate-compatible economic growth.
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    Guadalupe Bedoya

    Senior Economist
    Guadalupe (Lupe) Bedoya is a Senior Economist in the Development Impact Evaluation Department (DIME) at the World Bank. Her research focuses on the role of accountability mechanisms to reduce market failures, particularly in safety markets (patient safety, road safety, building safety), and multi-faceted interventions to reduce poverty in fragile contexts.
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    Théophile Bougna

    Economist
    Théophile Bougna is an Economist in the Development Impact Evaluation team of the World Bank. His current research focuses on transport, urban and spatial economics with a particular interest on measuring and explaining changes in the spatial distribution of economic activity. His research has been published in Regional Sciences and Urban Economics and featured in VoxEU.
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    Alice Duhaut

    Economist
    Alice Duhaut is an Economist in the Development Impact Evaluation unit at the World Bank where her work focuses on impact evaluations of transportation investments and economic corridors. Her research interests include transport policy, social networks and urban and regional economics.
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    Sveta Milusheva

    Economist
    Sveta Milusheva is an Economist in the Development Impact Evaluation (DIME) unit at the World Bank. She coordinates the ieConnect program of impact evaluations focused on transport investments and within this program leads the work on urban mobility. Her research interests include infrastructure and information & communication technologies, population mobility, health and gender.
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