6 IZA Discussion Papers
现说cussion Paper No. 15353
现说cussion Paper No. 12977
现说cussion Paper No. 12223
published in:Regional Studies55, 2021, (3), 479 - 494
现说cussion Paper No. 4768
published in: Economics Letters, 2010, 108 (2), 237-241
现说cussion Paper No. 1669
published in: B.E. Journal of Economic Analysis and Policy: Topics in Economic Analysis and Policy , 2008, 8 (1), Article 27
现说cussion Paper No. 1439
published in: International Economics and Economic Policy, 2006, 3 (2), 91-104
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