Peter Christoph Gutzwiller
Organisation for Economic Co-operation and Development. Committee on Financial Markets.
California. Legislature. Assembly. Committee on Ways and Means.
Kurt Lubasch
United States. General Accounting Office
Werner Dürkes
Helmut Sachse
Roland Vaubel
Franz-Joachim Robertz
Universität zu Köln. Institut für Energierecht.
Lilian N. Gurfinkel de Wendy
Ontario. Taxation and Fiscal Policy Branch.
Klaus Bilda
Helge D. Döser
Institute of Real Estate Management.
Milton Friedman
Robert P. Collier
Cord Lübke-Detring
Santosh Mukherjee