4 IZA Discussion Papers
IZA Discussion Paper No. 9429
revised version published in: Regional Science and Urban Economics, 2019, 77, 87–103.
IZA Discussion Paper No. 7689
IZA Discussion Paper No. 7161
published in: European Economic Review, 2017, 98, 282-315
IZA Discussion Paper No. 7086
published in: Empirical Economics, 2019, 56 (2), 651-678