Séverine Arnold (-Gaille) is Professor in Actuarial Science at the University of Lausanne, Switzerland. Besides a PhD in Actuarial Science, she has a Certificate in Population Study from the University of Geneva, Switzerland. Her research focuses on longevity risk/mortality modeling, with a particular interest in cause-specific mortality rates, and more recently on social security financial systems. She is currently the project leader on a three-year research project on Cause-specific mortality interactions. She is a member of the International Actuarial Association (IAA) Life Section Committee and the IAA Mortality Working Group.