Zoltan J. Acs is University Professor at the School of Public Policy and Director of the Center for Entrepreneurship and Public Policy, George Mason University, Virginia. He is also a Research Scholar at the Max Planck Institute for Economics in Jena, Germany, and Scholar-in-Residence at the Ewing Marion Kauffman Foundation, Kansas City, Missouri. In addition, he is a Visiting Professor at the University of Pecs in Hungary, where he received an honorary doctorate. Previously, he held the position of Doris and Robert McCurdy Distinguished Professor of Entrepreneurship and Innovation in the Robe...