Dr. Christian Bayer, University of Bonn (image) University of Bonn Share Print E-Mail Caption Dr. Christian Bayer is from the Institute of Macroeconomics and Econometrics and the Hausdorff Center for Mathematics at the University of Bonn. Credit © Photo: Barbara Frommann/Uni Bonn Usage Restrictions This photo may be used with the press release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.