Many studies have found that Chinese Communist Party membership brings economic benefits to party members, but some studies also argue that the premium associated with party membership is merely due to members' higher levels of ability and advantageous family backgrounds. The lack of consensus...

Ashenfelter and Krueger's (1993) within-twin, measurement-error- corrected estimate of the return to schooling is about 13-16 percent. If their estimate is unbiased, then their results imply considerable downward measurement error bias in uncorrected within-twin estimates of the return to...