search query: @freeterm HETEROGENEITY / total: 23
references: 22-23 / 23
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title | year | author | ||
22. |
Journal of Money, Credit and Banking
2002 : FEB, VOL. 34:1, p. 197-220 |
2002 | Levy, D. Dutta, S. Bergen, M. |
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23. |
Journal of Political Economy
2001 : AUG, VOL. 109:4, p. 673-748 |
2001 | Heckman, J. J. |
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