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Admissible Clustering Of Aggregator Components: A Necessary And Sufficient Stochastic Seminonparametric Test For Weak Separability

By Philippe De Peretti and Barnett William


International audienceIn aggregation theory, the admissibility condition for clustering components to be aggregated is blockwise weak separability, which also is the condition needed to separate out sectors of the economy. Although weak separability is thereby of central importance in aggregation and index number theory and in econometrics, prior attempts to produce statistical tests of weak separability have performed poorly in Monte Carlo studies. This paper introduces a new class of weak separability tests, which is seminonparametric. Such tests are both based on a necessary and sufficient condition and are fully stochastic, allowing to take into account measurement error. Simulations show that the tests perform well, even for large measurement errors

Topics: weak separability, seminonparametric test, [SHS.ECO]Humanities and Social Sciences/Economics and Finance
Publisher: 'Cambridge University Press (CUP)'
Year: 2009
DOI identifier: 10.1017/S1365100509090300
OAI identifier: oai:HAL:halshs-00646786v1
Provided by: HAL-Paris1
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