 
 
| From | rghuang <[email protected]> | 
| To | "[email protected]" <[email protected]> | 
| Subject | st: can someone explain the rubost option in reg | 
| Date | Tue, 23 Dec 2003 23:20:01 +0800 | 
| can sb tell me something about the the Huber/White/sandwich estimator of 
variance,and when we should compute it?why shouold we use this option? thank 
you!  | 
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