FACTORS INFLUENCING ACADEMIC ACHIEVEMENT OF BUSINESS ADMINISTRATION DEPARTMENT STUDENTS IN THAI PRIVATE HIGHER EDUCATION INSTITUTIONS This idea forms the basis of my empirical strategy. In essence, I compare the sorting parameter θ * in equation (3) across metropolitan housing markets with greater and lesser degrees of residential school choice. Let θ =θ(c,δ)= E[θ *|c,δ] be the average effectiveness sorting of markets characterized by the parameters c and δ , where c is the degree of jurisdictional competition (. the number of competing districts from which parents can choose, adjusted for their relative sizes) and δ is the importance that parents place on peer group relative to.
