Facoltà di scienze economiche

General saddlepoint approximations of marginal densities and tail probabilities

Gatto, Riccardo ; Ronchetti, Elvezio ; della Svizzera italiana, Svizzera

In: Journal of the American statistical association, 1996, vol. 91, no. 434, p. 666-673

Saddlepoint approximations of marginal densities and tail probabilities of general nonlinear statistics are derived. They are based on the expansion of the statistic up to the second order. Their accuracy is shown in a variety of examples, including logit and probit models and rank estimators for regression. Plus

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    Summary
    Saddlepoint approximations of marginal densities and tail probabilities of general nonlinear statistics are derived. They are based on the expansion of the statistic up to the second order. Their accuracy is shown in a variety of examples, including logit and probit models and rank estimators for regression.