Johan Gustaf Åkerman (1888–1959) was a Swedish economist who was Professor of Political Economy in what was to later become the University of Gothenburg. His work, in particular the Åkerman problem, played in an important role in the development of Wicksell's work on the role of capital. And was, according to Velupillai, one of the first to approach the problem of fixed capital as a joint product - work that was later developed by Piero Sraffa and John von Neumann[1][2]
(1923) Realkapital und Kapitalzins: Heft I. Stockholm Centralryckeriet
(1924) Realkapital und Kapitalzins: Heft II. Stockholm Centralryckeriet