It was coined by Werner Sombart, who was not a Marxist but rather a classical economics professor in Germany.
"Sombart, at that time, was an important Marxian, someone who used and interpreted Karl Marx — to the point that Friedrich Engels said he was the only German professor who understood Das Kapital. Sombart called himself a "convinced Marxist,"[1] but later wrote that "It had to be admitted in the end that Marx had made mistakes on many points of importance."