Аннотация:Journal Article Quality Ladders in the Theory of Growth Get access Gene M. Grossman, Gene M. Grossman Princeton University Search for other works by this author on: Oxford Academic Google Scholar Elhanan Helpman Elhanan Helpman Tel Aviv University Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 58, Issue 1, January 1991, Pages 43–61, https://doi.org/10.2307/2298044 Published: 01 January 1991 Article history Received: 01 August 1989 Accepted: 01 April 1990 Published: 01 January 1991
