Accession Number : ADA141728

Title :   The Effect of Aggregation in Nonlinear Regression.

Descriptive Note : Technical summary rept.,

Corporate Author : WISCONSIN UNIV-MADISON MATHEMATICS RESEARCH CENTER

Personal Author(s) : Goldberg,M L

PDF Url : ADA141728

Report Date : Apr 1984

Pagination or Media Count : 41

Abstract : It is often convenient to apply a nonlinear model developed for a single unit to data representing the average response for several units. The relationship between the parameters of the aggregate model and those of the individual units is investigated in a geometrical framework, for a general nonlinear model. The aggregation effect derived is closely related to the bias in nonlinear estimation, as given by Box. Unlike the bias, however, the aggregation effect may be of comparable magnitude to the standard error of the estimates. The theoretical results derived are verified empirically in an application to a model of residential energy consumption. (Author)

Descriptors :   *Mathematical models, *Nonlinear analysis, *Regression analysis, *Energy consumption, Residential section, Estimates, Parameters, Bias, Curvature, Errors, Coefficients

Subject Categories : Economics and Cost Analysis
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE