Abstract
A loss function proposed by Wasan (1970) is well-fitted for a measure of inaccuracy for an estimator of a scale parameter of a distribution defined onR +=(0, ∞). We refer to this loss function as the K-loss function. A relationship between the K-loss and squared error loss functions is discussed. And an optimal estimator for a scale parameter with known coefficient of variation under the K-loss function is presented.
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Kanefuji, K., Iwase, K. Estimation for a scale parameter with known coefficient of variation. Statistical Papers 39, 377–388 (1998). https://doi.org/10.1007/BF02927100
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DOI: https://doi.org/10.1007/BF02927100