[1] International Center for Higher Education Research (INCHER), Department of Economics, Economic Policy, Innovation and Entrepreneurship, University of Kassel, Germany
[2] Arndt-Corden Department of Economics, Crawford School of Public Policy, The Australian National University, 132 Lennox Crossing, Acton,ACT,2601, Australia
[3] Department of Economics, University of Sussex, Falmer, BN1 9SL, United Kingdom
[4] Institute for Environmental Studies, Vrije Universiteit Amsterdam, Netherlands
[5] Department of Spatial Economics, Vrije Universiteit Amsterdam, Netherlands
[6] Tinbergen Institute, Amsterdam, Netherlands
[7] CESifo, Munich, Germany
[8] Payne Institute for Public Policy, Colorado School of Mines, Golden,CO, United States