Étienne Laspeyres

Ernst Louis Étienne Laspeyres (; 28 November 1834 – 4 August 1913) was a German economist. He was ''Professor ordinarius'' of economics and statistics or ''State Sciences'' and cameralistics (public finance and administration) in Basel, Riga, Dorpat (now Tartu), Karlsruhe, and finally for 26 years in Gießen. Laspeyres was the scion of a Huguenot family of originally Gascon descent which had settled in Berlin in the 17th century, and he emphasised the Occitan pronunciation of his name as a link to his Gascon origins. Provided by Wikipedia