Journal Article Structure of the Correspondence Principle at an Extremum Point Get access Tatsuo Hatta Tatsuo Hatta Johns Hopkins University Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 47, Issue 5, October 1980, Pages 987–997, https://doi.org/10.2307/2296928 Published: 01 October 1980 Article history Received: 01 January 1978 Accepted: 01 February 1980 Published: 01 October 1980