TY - JOUR A1 - Zhang, J. A1 - Liu, P. A1 - Yung, L. T1 - The Cultural Revolution and returns to schooling in China: Estimates based on twins Y1 - 2007 DO - 10.1016/j.jdeveco.2006.12.006 JF - Journal of Development Economics VL - 84 IS - 2 SP - 631 EP - -639 ER -