Econometric Theory: Volume 2 -

Comment on a Paper by Singh and Ullah
P. M. Robinson
Published online by Cambridge University Press:

18 October 2010, pp. 151-152
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It is shown that the words ‘far weaker’ used four times by Singh and Ullafa [4] in describing their mixing condition in relation to ones of Robinson [1] for establishing the central limit theorem for nonparametric estimators, should in each case be replaced by theword ‘stronger,’ Singh and Ullah's [4] condition being equivalent to complete independence across time.

Econometric Theory