chaos6174 asks: In section 5.3 Fixed Effects versus Lagged Dependent Variables,you write that the fixed effect model can deal with the OVB problem caused time-invariant or group-invariant omitted var...
Jessie asks: Is there a nonparametric (or parametric) test that can be used to test whether the treatment and control group are similar in difference-in-difference before the treatment occurs? For ex...
Ilyssa wonders Question: In Table 4.1.1 (p. 124), how are there 30 instruments in Column 8 rather than 27 (= 3 qob dummies * 9 year of birth dummies)? Why indeed? There are still 3 QOB main effects....
… in the the Andean foothills, Chile, November 2011 LACEA: Santiago, November 2011
with the students of Rajk College, after receiving the Von Neumann Award
Lina from Essex writes: When talking about grouped data and 2SLS (section 4.1.3) you mention that expanding a continuous instrument is equivalent to have a set of Wald estimators that consistent esti...
Matt from Western Kentucky U comments on Chapter 3. . . Question: You state: “Our view is that regression can be motivated as a particular sort of weighted matching estimator, and therefore the...
could it be ... MHE as seen at the University of Groningen . . .what a good-lookin crew! excellent wardrobe choices what are they spelling? I wish I knew SMYE forever
Hui Cao from China caught this one . . . and it’s in the “corrected printing” to boot! On 6/21/11 12:44 PM, 晖 曹 wrote: On page 75: [p(Xi=x|Di=1)(1-p(Xi=x|Di=1)] should be [p(Di=1|X...
Arzu Kibris asks Question: Suppose you have data on turnout at the county level for two periods, t and t-1, and suppose there has been a change in the electoral threshold in some states from t-1 to t...
One more correction here folks. If you follow our prescriptions you won’t get the degrees of freedom for the F-stat right. ivreg2 gets this right for you (thanks to Jenny Hunt for pointing out this...
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