AN INQUIRY ll’TO THE EFFECTS OF PERSONALITY VARIABLES ON THE ECONOMIC RETURN TO EDUCATION The potential efficiency-enhancing effects of increased Tiebout choice operate through the assumption that parents prefer schools with j μ -promoting policies. To the extent that this is true, Tiebout choice induces a positive correlation between j μ and j x , since high- i x families will outbid lower- i x families for homes near the most preferred schools.