Regression Efficacy and the Curse of Dimensionality



This chapter gives a geometric representation of a class of nonparametric regression estimators that includes series expansions (Fourier, wavelet, Tchebyshev, and others), kernels and other locally weighted regressions, splines, and artificial neural networks. For any estimator having this geometric representation, there is no curse of dimensionality—asymptotically, the error goes to \(0\) at the parametric rate. Regression efficacy measures the amount of variation in the conditional mean of the dependent variable, \(Y\), that can be achieved by moving the explanatory variables across their whole range. The dismally slow, dimension-dependent rates of convergence are calculated using a class of target functions in which efficacy is infinite, and the analysis allows for the possibility that the dependent variable, \(Y\), may be an ever-receding target.


Nonparametric Regression Dense Class Compact Domain Nonparametric Technique Monotonic Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We owe many thanks to Xiaohong Chen, Graham Elliot, Jinyong Hahn, James Hamilton, Qi Li, Dan Slesnick, Hal White, Paul Wilson, and an anonymous referee for numerous insights, questions, references, conversations and corrections.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of EconomicsU.T. AustinAustinUSA
  2. 2.StataCorpCollege StationUSA

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