M. Sc. Economics (2003) and Ph.D Economics (2007) from University of Copenhagen
Bertel's major research interests are numerical dynamic programming and dynamic aspects of economics decision making. He have conducted research on the development and implementation of techniques to solve and estimate models of intertemporal economic behavior involving sequential decision making over time and under uncertainty. In his applied work, he has focused on various dynamic aspects of economic behavior including: entrepreneurial savings and entry/exit decisions, job-creation and firm growth, strategic investment behavior of duopoly firms, the dynamics of taxation for self-employed individuals, retirement behavior, and the effects of road user charging on car ownership, type choice and use.