Stephen Hansen is Associate Professor of Economics at Imperial College Business School.  Prior to this, he was a member of the economics faculty at the University of Oxford and Pompeu Fabra University.  He received his PhD in Economics from the London School of Economics in 2009.His research primarily focuses on information problems in organizations, with recent applications to the design of central banks and the role of CEOs in firms.  His work has increasingly incorporated unstructured data for generating novel measures of behavior using machine learning algorithms. He is currently an Affiliate at the CEPR and Turing Fellow at the Alan Turing Institute, and has in the past been both a fellow and academic consultant at the Bank of England.