- RePEc:trb:wpaper:2013.02
- RePEc:arx:papers:1305.1868
- RePEc:arx:papers:1305.1559
- RePEc:rug:rugwps:13/838
- RePEc:rif:briefs:10
- RePEc:ner:lselon:http://eprints.lse.ac.uk/49844/
- RePEc:mpr:mprres:7732
- RePEc:mpr:mprres:7747
- RePEc:pav:demwpp:demwp0041
- RePEc:rug:rugwps:13/834
- RePEc:pra:mprapa:46671
- RePEc:ivi:wpasec:2013-04
- RePEc:rug:rugwps:13/835
- RePEc:ivi:wpasec:2013-02
- RePEc:ner:louvai:info:hdl:2078.3/121969
- RePEc:ner:louvai:info:hdl:2078.3/119107
- RePEc:mse:cesdoc:13034
- RePEc:pra:mprapa:46697
- RePEc:ipt:iptwpa:jrc71972
- RePEc:ipt:iptwpa:jrc73451
- RePEc:ipt:iptwpa:jrc77746
- RePEc:ipt:iptwpa:jrc77707
- RePEc:ipt:iptwpa:jrc77799
- RePEc:ipt:iptwpa:jrc77748
- RePEc:ipt:iptwpa:jrc77725
- RePEc:ipt:iptwpa:jrc77801
- RePEc:ipt:iptwpa:jrc77942
- RePEc:ipt:iptwpa:jrc77946
- RePEc:ipt:iptwpa:jrc77807
- RePEc:ipt:iptwpa:jrc77950
- RePEc:ipt:iptwpa:jrc77951
- RePEc:ipt:iptwpa:jrc77760
- RePEc:ipt:iptwpa:jrc77953
- RePEc:ipt:iptwpa:jrc77766
- RePEc:ipt:iptwpa:jrc77771
- RePEc:ipt:iptwpa:jrc77779
- RePEc:ipt:iptwpa:jrc77776
- RePEc:ipt:iptwpa:jrc77870
- RePEc:ipt:iptwpa:jrc77773
- RePEc:ipt:iptwpa:jrc77874
- RePEc:ipt:iptwpa:jrc77810
- RePEc:ipt:iptwpa:jrc77975
- RePEc:mpr:mprres:7736
- RePEc:ipt:iptwpa:jrc79203
- RePEc:mpr:mprres:7738
- RePEc:rff:dpaper:dp-12-12-efd
- RePEc:mpr:mprres:7739
- RePEc:mpr:mprres:7743
- RePEc:mpr:mprres:7740
- RePEc:mag:wpaper:130007
- RePEc:ner:sciepo:info:hdl:2441/5rkqqmvrn4tl22s9mc0qg6hi2
- RePEc:soc:wpaper:wp012013
- RePEc:ilo:trends:467984
- RePEc:ilo:trends:479241
- RePEc:ilo:trends:480819
- RePEc:mpr:mprres:7735
- RePEc:ags:aare94:148162
- RePEc:pra:mprapa:46688
- RePEc:zrh:wpaper:312
- RePEc:ner:louvai:info:hdl:2078.1/127428
- RePEc:ner:louvai:info:hdl:2078.1/127419
- RePEc:unu:wpaper:wp2013-006
- RePEc:unu:wpaper:wp2013-008
- RePEc:mpr:mprres:7734
- RePEc:arx:papers:1305.1747
- RePEc:ner:sciepo:info:hdl:2441/5rkqqmvrn4tl22s9mc0p00hch
- RePEc:nbr:nberwo:19017
- RePEc:ner:louvai:info:hdl:2078.1/127418
- RePEc:arx:papers:1305.2121
- RePEc:mpr:mprres:7737
- RePEc:unu:wpaper:wp2013-019
- RePEc:mpr:mprres:7742
- RePEc:pra:mprapa:46804
- RePEc:ner:louvai:info:hdl:2078.1/121322
- RePEc:ilo:ilowps:480792
- RePEc:ner:tilbur:urn:nbn:nl:ui:12-5905283