From the article:
“Esther Duflo has distinguished herself through definitive contributions to the field of Development Economics,” the AEA said in its announcement [3]. “Through her research, mentoring of young scholars, and role in helping to direct the Abdul Latif Jameel Poverty Action Lab at MIT, she has played a major role in setting a new agenda for the field of Development Economics, one that focuses on microeconomic issues and relies heavily on large-scale field experiments.”