Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: Cragg Donald tests

From   Karan Nagpal <[email protected]>
To   [email protected]
Subject   st: Cragg Donald tests
Date   Thu, 22 Mar 2012 00:14:32 +0000

I'm trying to test the strength of my instruments, but not sure how to
interpret the Cragg-Donald IV values. I implemented ivreg2, and
received the following output:

Stock-Yogo weak ID test critical values:
10% maximal IV size             16.38
                                         15% maximal IV size              8.96
                                         20% maximal IV size              6.66
                                         25% maximal IV size              5.53

I'm not sure what I should be comparing these values to and how I can
use the "main output" to find the Cragg-Donald F statistic, which is
what stata advised.


*   For searches and help try:

© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index