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A Monte Carlo Study of Recent Ridge Parameters

Mahdi A. Alkhamisi and Ghazi Shukur
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Mahdi A. Alkhamisi: Department of Mathematics, Salahaddin University; Department of economics and Statistics, Jönköping University, Postal: Centre for Labour Market Policy Research (CAFO), Dept of Economics and Statistics, School of Management and Economics, Växjö University

No 2006:1, CAFO Working Papers from Linnaeus University, Centre for Labour Market Policy Research (CAFO), School of Business and Economics

Abstract: A number of procedures have been developed for finding biased estimators of regression parameters. One of these procedures is the ridge regression. In this paper, a new approach to obtain the ridge parameter (K) is suggested and then evaluated by Monte Carlo simulations. A large number of different models were investigated, where the number of observations, the strength of correlation between the explanatory variables and the distribution of the error terms have been varied. The mean squared of error (MSE) is used as criterion to examine the performance of the proposed estimators when compared with other well-known estimators. Under certain conditions, it is shown that at least one of the proposed estimators have a smaller (MSE) than the ordinary least squared estimator (OLS) and Hoerl and Kennard (1970a) estimator (HK).

Keywords: Multicollinearity; Ridge regression; Monte Carlo simulations (search for similar items in EconPapers)
JEL-codes: C13 (search for similar items in EconPapers)
Pages: 32 pages
Date: 2006-01-01
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