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41.
In a model of equioverlapping samples maximum likelihood estimation of a Poisson parameter is examined and compared with two linear unbiased estimations by mean squared error. Since a likelihood estimator is not explicitly available in general, a simulation study has been performed and the results are illustrated 相似文献
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Heinz B 《Journal of homosexuality》2003,45(2-4):369-373
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James R. Schott 《统计学通讯:理论与方法》2017,46(12):6112-6118
The allometric extension model is a multivariate regression model recently proposed by Tarpey and Ivey (2006). This model holds when the matrix of covariances between the variables in the response vector y and the variables in the vector of regressors x has a particular structure. In this paper, we consider tests of hypotheses for this structure when (y′, x′)′ has a multivariate normal distribution. In particular, we investigate the likelihood ratio test and a Wald test. 相似文献
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Projecting Long-Term Care Expenditure in Four European Union Member States: The Influence of Demographic Scenarios 总被引:1,自引:0,他引:1
Joan Costa-Font Raphael Wittenberg Concepció Patxot Adelina Comas-Herrera Cristiano Gori Alessandra di Maio Linda Pickard Alessandro Pozzi Heinz Rothgang 《Social indicators research》2008,86(2):303-321
This study examines the sensitivity of future long-term care demand and expenditure estimates to official demographic projections
in four selected European countries: Germany, Spain, Italy and the United Kingdom. It uses standardised methodology in the
form of a macro-simulation exercise and finds evidence for significant differences in assumptions about demographic change
and its effect on the demand for long-term care, and on relative and absolute long-term care expenditure. It concludes that
mortality-rate assumptions can have a considerable influence on welfare policy planning. Relative dispersion between country-specific
and Eurostat official estimates was found to be higher for the United Kingdom and Germany than for Italy and Spain, suggesting
that demographic projections had a greater influence in those countries.
相似文献
Joan Costa-FontEmail: |
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The theory of best affine prediction (BAP) is extended to the vector case with possibly singular variance matrix of the predictor
variable. The theory is then applied to derive Thomson’s classical predictor for factor scores, allowing for a singular variance
matrix of the factors. The results are formulated in a free distribution setting. Further, Bartlett’s estimator is considered
and compared with Thomson’s predictor.
The authors are thankful to the two referees, one for a suggestion that led to the Addendum of the paper, and the other one
for several very useful remarks. Research supported by the Spanish grant BEC2000-0983. 相似文献
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