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# On the Joint Asymptotic Behavior of Two Rank-Based Estimators of the Association Parameter in the Gamma Frailty Model

## Christian Genest, Jean-François Quessy, and Bruno Rémillard

BibTeX reference

Rank-based estimators were proposed by Clayton (1978) and Oakes (1982) for the association parameter in the bivariate gamma frailty model. The joint asymptotic behavior of these estimators is considered here, following a different approach from that used by Oakes (1982, 1986). This leads to a correction of the formula given by Shih (1998) for the limiting covariance between the two estimators.

, 11 pages

### Publication

On the joint asymptotic behavior of two rank-based estimators of the association parameter in the gamma frailty model
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Statistics and Probability Letters, 76(1), 10–18, 2006 BibTeX reference