Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


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

st: conception confusion - "fixed effects" and time effect on data with time factor


From   House Wang <jwanghouse@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: conception confusion - "fixed effects" and time effect on data with time factor
Date   Mon, 17 Oct 2011 19:01:50 -0500

Folks,

Very sorry to bother you on this tricky question.

My data is not a typical longitudinal (panel) data: they are not
observations on the same subjects across 30 years, but observations on
similar subjects across 30 years (like different persons in different
years).

There are a lot of solutions for fixed effects in typical panel data.
But for my data, I even cannot say there are "fixed effects" across years.
What I can only say for my data: 1, there is a time factor in the data
(30 continuous years).
I have two questions:
1, Should there be a time effect on the data, conceptually? (This is
easy for panel data, but for my data, I cannot tell.)
2, if so, is there anyway that I can find changes of the D.V. as the
result of time change (30 years)?
3, if so, what is the general command and procedure I can use?
(tsset can be used to claim time series data, but my data is not a
typical panel data. So what command can I use?)

Thanks a lot.

Jianying
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index