%0 Journal Article %T Solving the Omitted Variables Problem of Regression Analysis Using the Relative Vertical Position of Observations %A Jonathan E. Leightner %A Tomoo Inoue %J Advances in Decision Sciences %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/728980 %U http://dx.doi.org/10.1155/2012/728980