I have 30 years of experience, and specialize in the field of fixed income securities with specific knowledge in the areas of residential mortgage-backed securities (RMBS), asset-backed securities (ABS) and risk management. I have published on such topics as mortgage-backed security (MBS) derivatives, adjustable rate mortgages and relative value. I have testified 30 times on topics such as asset backed commercial paper, structured investment vehicles and mortgage backed securities.