Stephen is currently assistant professor in empirical econometrics at the University of Mannheim. He completed his PhD in 2013 in a joint position at the University of Amsterdam and the VU Amsterdam. He conducted his undergraduate degree at Northwestern University before returning to Europe to pursue his MSc./MPhil degree at the Tinbergen Institute in the Netherlands.

His research interests focus on the fields of dynamic microeconometric methodology, dynamic treatment effects and its applications to topics in crime and labour.

He joined IZA as a Research Affiliate in 2011.