Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/79337
Year of Publication: 
2007
Series/Report no.: 
cemmap working paper No. CWP09/07
Publisher: 
Centre for Microdata Methods and Practice (cemmap), London
Abstract: 
Suppose that a target function is monotonic, namely, weakly increasing, and an original estimate of the target function is available, which is not weakly increasing. Many common estimation methods used in statistics produce such estimates. We show that these estimates can always be improved with no harm using rearrangement techniques: The rearrangement methods, univariate and multivariate, transform the original estimate to a monotonic estimate, and the resulting estimate is closer to the true curve in common metrics than the original estimate. We illustrate the results with a computational example and an empirical example dealing with age-height growth charts.
Subjects: 
Monotone function , improved approximation , multivariate rearrangement , univariate rearrangement , growth chart , quantile regression , mean regression , series , locally linear , kernel methods
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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