6533b7d4fe1ef96bd126309b

RESEARCH PRODUCT

Weighted samples, kernel density estimators and convergence

Francisco José Goerlich Gisbert

subject

Statistics and ProbabilityEconomics and EconometricsMathematical optimizationKernel density estimationEstimatorMultivariate kernel density estimationKernel principal component analysisMathematics (miscellaneous)Penn World TableKernel embedding of distributionsVariable kernel density estimationKernel (statistics)Applied mathematicsSocial Sciences (miscellaneous)Mathematics

description

This note extends the standard kernel density estimator to the case of weighted samples in several ways. In the first place I consider the obvious extension by substituting the simple sum in the definition of the estimator by a weighted sum, but I also consider other alternatives of introducing weights, based on adaptive kernel density estimators, and consider the weights as indicators of the informational content of the observations and in this sense as signals of the local density of the data. All these ideas are shown using the Penn World Table in the context of the macroeconomic convergence issue.

https://doi.org/10.1007/s001810200134