Mathematica is one of two policy research centers that lead the SSA's Disability Research Consortium. The DRC fosters new research from a team of disability policy experts from Mathematica and three universities.
Disability policy analysis and program evaluation
Qualitative and quantitative research
Housing for people with disabilities
- Health Care
- Employment and Income Support
Denise Hoffman’s research focuses on the employment, program participation, health insurance, and housing of adults with disabilities. Her current research includes an analysis of the Benefit Offset National Demonstration, which tests the effects of an alternative benefit schedule on Social Security Disability Insurance (DI) beneficiaries’ employment and DI benefit receipt. In addition, she is conducting several analyses as part of the Social Security Administration Disability Research Consortium, including an analysis of work-related overpayments to DI beneficiaries and, separately, an assessment of the extent to which Medicare and private insurance meet the employment-related health care needs of people with disabilities.
Hoffman’s past research includes impact analyses of federally-funded initiatives intended to help people with disabilities become self-sufficient, including Ticket to Work, the Demonstration to Maintain Independence and Employment, and the Non-Elderly Disabled Housing Voucher Program. She also used the American Housing Survey to conduct quantitative analyses comparing the housing and neighborhood characteristics of people with and without disabilities.
Hoffman, who joined Mathematica in 2010, serves on the AcademyHealth Disability Research Interest Group Committee. She holds a Ph.D. in economics from the University of North Carolina at Chapel Hill.
Benefit Offset National Demonstration (BOND) Implementation and Evaluation
The Benefit Offset National Demonstration is testing variants of Social Security Disability Insurance program rules governing work and other supports.
Demonstration to Maintain Independence and Employment (DMIE)
The Demonstration to Maintain Independence and Employment, authorized under the Ticket to Work and Work Incentives Improvement Act of 1999, awards funds to states to develop, implement, and evaluate interventions for workers with potentially disabling health conditions.
Testing New Earnings Rules for Social Security Disability Insurance: Findings from the Benefit Offset National Demonstration
The current earnings rules for Social Security Disability Insurance (DI) specify that, after using available work incentives, DI beneficiaries are not owed a DI benefit check if they earn more than a certain threshold. The Benefit Offset National Demonstration (BOND) tested a design intended to encourage...