Econometrica: Jan 1966, Volume 34, Issue 5
North American Regional Conference, New York, December, 1965: Economic Theory-II
https://doi.org/0012-9682(1966)34:5<138:ET>2.0.CO;2-X
p.
138-139
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https://doi.org/0012-9682(1966)34:5<138:ET>2.0.CO;2-X
p.
138-139