7 IZA Discussion Papers
现正讨论佩普r No. 13937
13794号现正讨论文件
现正讨论佩普r No. 13035
现正讨论佩普r No. 5677
published in: the Industrial Labor Relations Review (ILRReview), October 2015; vol. 68, 5: pp. 1043-1077
现正讨论佩普r No. 423
published in: European Economic Review, 2003, 47(4), 645-668
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