Econometrica: Nov 1984, Volume 52, Issue 6
Notes and Comments: The X^2 Goodness of Fit Statistic for Models with Parameters Estimated from Microdata
https://doi.org/0012-9682(198411)52:6<1543:TXGOFS>2.0.CO;2-E
p.
1543-1548
James J. Heckman
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