Journal Article Externalities as a Necessary Condition for Cyclical Social Preferences Get access Peter Bernholz Peter Bernholz Universität Basel, Switzerland Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Economics, Volume 97, Issue 4, November 1982, Pages 699–705, https://doi.org/10.2307/1885107 Published: 01 November 1982