ATAI Researchers are a select group of leading impact evaluation specialists in agriculture, the majority from J-PAL and CEGA networks.

ATAI is led by a Board of J-PAL and CEGA affiliates, supported by a staff “Secretariat.” To view the full list of our affiliates, see the organization websites for CEGA and J-PAL.



Assistant Professor of Economics at the College of William & Mary and Chief Economist of AidData

Personal Website

Ariel BenYishay, Assistant Professor of Economics, earned his PhD in economics from the University of Maryland, after which he accepted a teaching position at the University of New South Wales in Sydney, Australia before coming to William & Mary. Professor BenYishay’s research focuses on development economics, program evaluation, and empirical microeconomics. His teaching role will include undergraduate empirical microeconomics and development economics in the Jefferson Program in Public Policy.