Journal Article A Note on the Problem of Aggregation Get access Fritz Pokropp Fritz Pokropp Universittä Hamburg Institut für Statistik und Ökonometrie Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 39, Issue 2, April 1972, Pages 221–230, https://doi.org/10.2307/2296874 Published: 01 April 1972