R. C. Hill and P. A. Cartwright (1994) examined the relative performance of ordinary least squares, the equity estimator, and the Stein estimator on four scanner data sets. Based on this limited simulation, they claimed that the Stein estimator is an attractive alternative to the equity...

The main objective of this paper is to provide a decision-support system of micro-level customized promotions, primarily for use in online stores. Our proposed approach utilizes the one-on-one and interactive nature of the Internet shopping environment and provides recommendations on . We...

We introduce a new biased estimator called the Equity estimator to estimate parameters of linear models in the presence of multicollinearity. We then employ a comprehensive simulation methodology to evaluate OLS, the Equity estimator, and a particular form of the Ridge estimator which has...