Abstract
Original language | English |
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Publisher | Department of Economics, University of Copenhagen |
Number of pages | 104 |
Publication status | Published - 1999 |
Martin Browning, Lars Peter Hansen, James J. Heckman
Research output: Working paper › Research
Original language | English |
---|---|
Publisher | Department of Economics, University of Copenhagen |
Number of pages | 104 |
Publication status | Published - 1999 |