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A correction to make Chao estimator conservative when the number of sampling occasions is finite

Alessio Farcomeni and Francesco Dotto

Statistics & Probability Letters, 2021, vol. 176, issue C

Abstract: Chao estimator is not guaranteed to be asymptotically conservative with finite sampling efforts. A simple correction solves the issue. We illustrate with simulations and examples that the corrected Chao estimator is asymptotically conservative, and has lower standard error.

Keywords: Chao estimator; Conservative estimation; Sampling efforts (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1016/j.spl.2021.109154

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