Heckman, James J.; Macurdy, Thomas E.
Publication Year:
1985
Publication Title:
The Canadian Journal Of Economics / Revue Canadienne D'Economique
ISSN:
0008-4085
Pages:
28-37
Issue:
1
Volume:
18
JournalAbbreviation:
The Canadian Journal Of Economics / Revue Canadienne D'Economique
DOI:
10.2307/135111
Url:
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