When viewing referenced documents, please note: Copyrights are held variously by the authors or publishers. In general, these papers are provided for direct use in scholarship and education. If you are contemplating other uses, such as republication, you must obtain appropriate permissions. If you wish to cite any of the published work, please look up the formal publication, and use that version. The preprints in this area are as accurate as I can make them, but they are not authoritative copies of the published versions.
The memoir of Edmund Phelps is a chapter titled The Origins And Further Development Of The Natural Rate Of Unemployment in:
The Natural Rate Of Unemployment, Reflections On 25 Years Of The Hypothesis
Edited by Rod Cross
1995, Cambridge University Press, Cambridge, UK
Available in: [PDF]