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- Supplemental Nutrition Assistance Program eligibility, participation, and dynamics
- Food Security and Hunger
- Nutrition Assistance Programs
- Program Integrity
- Human Services
Joshua Leftin studies nutrition assistance programs, focusing on their implementation, participation, and impacts. He has played key roles on evaluations of the Supplemental Nutrition Assistance Program (SNAP), Special Supplemental Nutrition Program for Women, Infants, and Children, and National School Lunch and School Breakfast Programs.
Leftin leads an evaluation examining SNAP benefit and eligibility parameters and their alignment with actual expenses of low-income households. He has also worked extensively on annual federal microsimulation and related SNAP data analyses to produce reports on characteristics of SNAP households as well as national and state participation rates. His quick-turnaround simulations and analyses have been instrumental to help policymakers estimate the distributional and cost impacts of proposed SNAP reforms. He has also studied efforts to better reach the underserved elderly and working poor, examined the SNAP Employment and Training program, and developed improvements for SNAP participation surveys.
Before joining Mathematica in 2008, Leftin held positions at the Georgetown Public Policy Institute and ICF International. He holds an M.P.P. and M.A. in economics from Georgetown University.
Striking a Balance: Examining SNAP Benefit and Eligibility Parameters for Low-Income Households
This study will assess whether benefit and eligibility parameters of the Supplemental Nutrition Assistance Program (SNAP) are aligned with the actual expenses that low-income households incur.
Reaching the Underserved Elderly and Working Adults in the Supplemental Nutrition Assistance Program
Mathematica evaluated demonstration programs in six states—Michigan, Pennsylvania, Ohio, Massachusetts, Minnesota, and Washington—that focused on increasing SNAP access to the underserved elderly and working adults.
Supplemental Nutrition Assistance Program Employment and Training Pilots Evaluation
This evaluation is testing innovative strategies for increasing employment and earnings among SNAP participants and reducing their dependence on SNAP and other public assistance programs. The study was mandated in the 2014 Farm Bill.
SNAP Analysis for Health Impact Assessment of U.S. Farm Bill
Two of the changes to the Supplemental Nutrition Assistance Program (SNAP) proposed in the 2014 U.S. Farm Bills were (1) eliminating the standard utility allowance for those receiving a nominal Low-Income Home Energy Assistance Program benefit and (2) eliminating broad-based categorical eligibility for...
Providing Definitive Answers on Hunger and Food Insecurity
This study was the largest survey of food security and food spending among SNAP participants to date. The results can inform the policy discussion on program elements such as benefit size and promote evidence-based policymaking.