Bernard Marinus Siegfried van Praag ( born 28 February 1939 ) is a Dutch economist .
Distinguished University Professor at the University of Amsterdam , noted for researching the measurement of welfare , as well - being and happiness .
Bernard Marinus Siegfried van Praag ( born 28 February 1939 ) is a Dutch economist , and Distinguished University Professor at the University of Amsterdam , noted for researching the measurement of welfare , as well - being and happiness .