Aparna Mathur is a research fellow in economics policy at American Enterprise Institute. She received her Phd in Economics in 2005 from the University of Maryland. Her fields of specialization are applied microeconomics, international finance, and econometrics. Using panel data methodology, her research focuses on trends in corporate taxes across countries. She also analyzes health policy issues, in particular the impact of high health-care costs on consumer bankruptcy filings, and the disproportionate impact of state health-insurance mandates on small companies. Her research on the impact of state bankruptcy laws on small-company entry and exit decisions was published by the Small Business Administration's Office of Advocacy. Her academic work on corporate taxation has also been cited in The Economist. Aparna has held freelance consulting positions at the World Bank in Washington. She has also taught courses in microeconomics at the University of Maryland.