Comparison between dependent variables?
Hello. I am analysing some experimental data, where I look at how the manipulation affected the public opinion for support for three different foreign policy measures (I had three questions with a...
View ArticleIndex of qualitative variation
Hello, I want to use an index of qualitative variation (nominal variables) in Stata. Is there a specific command? Thank you in advance
View ArticleHelp in Fama MacBeth regression
I am working on the five factor model. On the right hand side, I have excess market return and have also constructed independent portfolios SMB, HML, CMA, and RMW . One the left hand side, I have...
View ArticleMultilevel regression where level 2 error term follows an AR 1 process
Hello everyone! Currently i'm working on a multilevel model that follows the framework from DiPetre and Grusky, where they assume that level 2 corresponds to time points and level 1 to individuals. Now...
View ArticleWhen can we say a magnitude of effect is small or large?
Dear All, is there any rule of thumb by which we can say that a given magnitude of effect (with respect to regression analysis) is large or small? Take for example, I estimate a probit regression and...
View ArticleStata forum Spoiler option when typing?
Hello everybody, I have a question about the Stata forum , not the program. When posting a question , often it is convenient to post yout dataset (use ), but sometimes this list can be long. A 100 for...
View ArticleFormatting a table and export to word
I would like to construct a table in the following format. I have 8 variables. I do the following and do the rest by hand.. tabstat Income prod , by(size) stat(N mean median sd min max) nototal long...
View ArticleSampling from DIscrete data for Monte Carlo simulations
Hi All, I am in the process of testing some properties of an estimator I am working with. To that end, I need to sample from discrete data points, basically labelling these data points as individuals....
View Articlemm_root function to solve for unknows -
I am trying to solve the unkown IRR using mm_root function of the moremata package. Here is my example data set Code: clear input float(eps1 eps2 dps1) double prccd float IRR .33 .46 .02 7.66 . .3 .41...
View ArticleStoring mean vector from "mean" command in a loop, what to...
Hi STATA-list members, I am trying to run a large number of summary statistics (means) and input them into a matrix using Stata 13.0. For the first part of this process, I’m looping through two of my...
View ArticleConvert quarterly to monthly data
Could you please give me a help on how to transform quarterly GDP to monthly data?
View ArticleHelp file
Hi, I need your help please!! I'm thinking of writing help files for the Stata programs I've been working on, and was wondering if anyone could point me to some useful material on getting started....
View ArticleAdded value of fixed effects model in addition to difference-in-differences
Dear all, I would like to better understand the added value of performing a fixed effects regression (-xtreg, fe-) in addition to a difference-in-differences regression (-diff-). For my master thesis,...
View ArticleSelection Bias? xtlogit y x1 x2, fe. Adding a var
Dear Stata community, I have been doing a research and thought of new variables to add. I am afraid of a possible selection bias or that my regression is not robust anymore. Is this the case? How to...
View ArticleTwo Level Clustering.
Hello, It's my first time here and hopefully not my last. I am replicating a paper and I need to understand what is the best way to cluster at two levels. For those that want a bit more of information,...
View ArticleCompeting risks analysis with different exit times for different events
In clinical trials of initial breast cancer treatment, patients ordinarily remain under observation until the earliest of the following events: local tumor recurrence, distant tumor recurrence, breast...
View ArticleComparing subgroups in a D-I-D analysis
I am trying to compare my subgroup regressions (example male vs female or white vs non white). I ran these separately using a diff in diff model as I want to see how the policy impact each of the...
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How to normalize a variable whose values range b/w 0 and 1?
I know it sounds weird, but this is the problem i m facing now i have a continuous variable whose values range b/w 0 and 1(the values are extremely small, with mean .0235 and standard deviation .0438)....
View ArticleHausman and Hsiai IIA tests
Hello dear all, I got these results of hausman and Hsiai IIA tests: **** Hausman tests of IIA assumption (N=38555) Ho: Odds(Outcome-J vs Outcome-K) are independent of other alternatives. Omitted | chi2...
View ArticleStata not responding with cluster ()
Hi all, I am trying to run the following regression: reg RatVal RatAvg RatValT1 RatValT2 RatValT3 RatValT4 RatValT5 RevPosT1 RevPosT2 RevPosT3 RevPosT4 RevPosT5 RevNegT1 RevNegT2 RevNegT3 RevNegT4...
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