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New products with a symmetric AIDS expenditure function

✍ Scribed by Robert C. Feenstra

Book ID
116422418
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
153 KB
Volume
106
Category
Article
ISSN
0165-1765

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Let x, > 0, y, ) 0 for i = I,..., n; and let a,(x) be the elementary symmetric function of n variables given by a,(x) = C ,<rl<...<,,<n~r,...~r,.Definethepartial ordering x< y if a,(x) (a,(y), j= l,..., n. We show that x<y=-x"<y", 0 ( a < 1, where (x"), = x7 . We also give a necessary and sufficient