Alvaro Cencini is Full Professor of Monetary Economics at the University of Lugano, Switzerland. He has a DPhil degree from the University of Fribourg and a PhD degree from the London School of Economics. He has collaborated with Bernard Schmitt for 44 years and is the author of several books and papers on quantum monetary macroeconomics. Sergio Rossi is Full Professor of Macroeconomics and Monetary Economics at the University of Fribourg, Switzerland. He has a DPhil degree from the University of Fribourg and a PhD degree from University College London. His research interests are in the area of monetary economics. He has authored and edited many books, contributed several chapters to books, and widely published in international journals.