[1] Penn State Univ, Dept Management Sci & Informat Syst, University Pk, PA 16802 USA
[2] Penn State Univ, Dept Stat, University Pk, PA 16802 USA
[3] Miami Univ, Dept Decis Sci & Management Informat Syst, Oxford, OH 45056 USA
[4] Monash Univ, Dept Econometr, Clayton, Vic 3168, Australia