The Econometric SocietyEconometrica: Jan 1980, Volume 48, Issue 1
Report of the Treasurer
https://doi.org/0012-9682(198001)48:1<256:ROTT>2.0.CO;2-Z
p.
256-262
Robert J. Gordon
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https://doi.org/0012-9682(198001)48:1<256:ROTT>2.0.CO;2-Z
p.
256-262
Robert J. Gordon