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1 Smith, Ken R.Biased estimation in policy research: an illustrative example of ridge regression in a health system modelThe paper develops an argument for the necessity of examining individual coefficients in policy models. As a result of this need, it is posited that something other than OLS estimators should be used since they are inflated and have extremely large variances when multicollinearity is present. Furthe...Policy models; Health systems; Ridge regression1980
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