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James Mabli's research focuses on federal nutrition assistance programs, including the Supplemental Nutrition Assistance Program (SNAP), formerly known as the Food Stamp Program; the Special Supplemental Nutrition Program for Women, Infants, and Children; and community-based emergency food programs.
Mabli is the deputy project director for Mathematica’s national evaluation of the impact of SNAP on household food security. He also currently directs several projects related to the dynamics of participants entering and exiting SNAP; the effect of changes in the economy on the characteristics of SNAP participants; and the relationship between low-income household food security and access to retail food establishments and emergency food pantries.
Mabli was the principal investigator of Hunger in America, the largest national evaluation of food insecurity and hunger to date, for Feeding America. He also played a key role in recent projects looking at the relationship between spending on food and diet outcomes for low-income households and the relationship between SNAP caseload trends and changes in economic factors and program policies over the past decade.
Mabli, who joined Mathematica in 2006, has presented at the Southern Economic Association meetings and the Federal Conference of Statistical Methodology. He holds a Ph.D. in economics from New York University.
Evaluation of SNAP Employment and Training Pilots
The Supplemental Nutrition Assistance Program (SNAP) is the primary source of nutrition assistance for many low-income people. Beyond providing access to food assistance, SNAP also provides some participants with a critical work support, helping them during times of unemployment or underemployment.
The Administration on Aging Nutrition Services Program Evaluation
The Administration for Community Living (ACL) was created around the fundamental principle that all people, regardless of age or disability, should be able to live independently and fully participate in their communities.
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.
Evaluation of the Harlem Children's Zone Healthy Harlem Initiative
The Healthy Harlem initiative is a model for promoting healthy lifestyles in the charter schools, early childhood programs, and afterschool programs operated by the Harlem Children’s Zone® (HCZ). Mathematica's evaluation includes both an implementation/process study and an impact study.
Mathematica Evaluates How Nutrition Services Can Affect Older Adults' Health Outcomes
For many older adults, access to nutritious meals and other services provided through the Older Americans Act Nutrition Services Program can boost social connection, promote independence, and potentially improve health outcomes.
New Study Reveals Healthy Harlem Program Led to Increased Physical Activity and Improved Weight Status for Overweight and Obese Students
For overweight and obese middle and high school students enrolled in Harlem Children’s Zone (HCZ) after-school programs, participation in Healthy Harlem led to sustained positive impacts on physical fitness and weight status, according to interim findings from Mathematica.
Congressional Testimony on SNAP Household Characteristics
Senior researcher Karen Cunnyngham testified before the House Committee on Agriculture’s Nutrition Subcommittee at a public hearing to review SNAP recipient characteristics and participation patterns. Findings from a recent study on SNAP dynamics, coauthored by senior researcher James Mabli, were also...
SNAP Associated with Improved Household and Child Food Security
A study for Food and Nutrition Service (FNS) of the United States Department of Agriculture (USDA) shows that participation in the Supplemental Nutrition Assistance Program (SNAP) is associated with improved food security.
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.
WIC Breastfeeding Policy Inventory
This video sheds light on the comprehensive range of policies and practices that WIC agencies use to promote breastfeeding. Mathematica's study, the first to examine WIC agencies' breastfeeding policies, surveyed 90 state-level agencies and nearly 1,800 local WIC agencies.