Journal Article Vertical and Horizontal Communication in Economic Processes Get access Robert L. Welch Robert L. Welch University of Kentucky Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 47, Issue 4, July 1980, Pages 733–746, https://doi.org/10.2307/2296939 Published: 01 July 1980 Article history Received: 01 July 1976 Received: 01 September 1979 Published: 01 July 1980