Econometrica: Jul, 1980, Volume 48, Issue 5

Some Approximations to the Distribution of Econometric Criteria which are Asymptotically Distributed as Chi-Squared

https://doi.org/0012-9682(198007)48:5<1107:SATTDO>2.0.CO;2-W
p. 1107-1138

J. D. Sargan

This paper is concerned with giving general conditions for the validity of a approximation to a distribution function by means of the weighted sum of a set of Chi-squared distribution functions. The conditions are very similar to those of [3]. The approximation is illustrated by an example of its use.