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Re: st: RE: growth rate
From
"Justina Fischer" <[email protected]>
To
[email protected]
Subject
Re: st: RE: growth rate
Date
Wed, 10 Oct 2012 15:57:03 +0200
Hi Nick,
you are completely right and I have already posted a corection.
actually, the question of 'growth rate' is rather a mathematical one, e.g. we have also growth rates in biology (populations), etc.
Cheers
Justina
-------- Original-Nachricht --------
> Datum: Wed, 10 Oct 2012 14:51:29 +0100
> Von: Nick Cox <[email protected]>
> An: [email protected]
> Betreff: Re: st: RE: growth rate
> My economics is a bit rusty (last class was in 1969), but I guess
> there is a division sign in there somewhere.
>
> On Wed, Oct 10, 2012 at 2:45 PM, Justina Fischer <[email protected]>
> wrote:
> > HI,
> >
> > this is an approximation (Taylor), but not the exact growth rate.
> >
> > The growth rate is defined as : (GDP-L1.GDP)(GDP)
> >
> > Best
> >
> > Justina
> > -------- Original-Nachricht --------
> >> Datum: Wed, 10 Oct 2012 13:39:56 +0000
> >> Von: "Swanquist, Quinn Thomas" <[email protected]>
> >> An: "[email protected]" <[email protected]>
> >> Betreff: st: RE: growth rate
> >
> >> If you must use xtset to do this, you can create a new variable to
> >> identify the year as follows:
> >>
> >> sort id year
> >> by id: gen yearid = _n
> >> xtset id yearid
> >> gen growth=D.loggdp
> >>
> >> Alternatively you could use:
> >>
> >> sort id year
> >> by id: gen growth = loggdp - loggdp[_n-1]
> >>
> >> Of course your growth rate is based on unbalanced panel data so you'll
> >> need to consider that when using this variable for its intended
> purpose.
> >>
> >> Quinn T. Swanquist
> >> [email protected]
> >>
> >> -----Original Message-----
> >> From: [email protected]
> >> [mailto:[email protected]] On Behalf Of Lynn Lee
> >> Sent: Wednesday, October 10, 2012 9:25 AM
> >> To: [email protected]
> >> Subject: st: growth rate
> >>
> >> Nick,
> >>
> >> My panel data has 4 years for each country,2007,2002,1997,1995. The gap
> is
> >> not same. Therefore, I do not know how to assign value to -delta()- in
> >> -xtset-. I figured out why Stata11 generated all missing values for
> growth
> >> rate. But the year gap is unbalanced. I tried -xtset id year,delta(5)-,
> >> Stata11 told me "time values with period less than delta() found.
> >>
> >> Now, I replace "1995" with "1992" artificially, then I got the growth
> >> rate.
> >>
> >> But is there any direct way (not need to replace the year artificially)
> >> which can generates growth rate for unbalanced year gap panel data?
> >>
> >> I appreciate for your help.
> >>
> >> Best Regards,
> >> Lynn Lee
> >>
> >>
> >> -----Original Message-----
> >> From: [email protected]
> >> [mailto:[email protected]] On Behalf Of Nick Cox
> >> Sent: Wednesday, October 10, 2012 8:49 PM
> >> To: [email protected]
> >> Subject: Re: st: growth rate
> >>
> >> -help xtset- explains about setting by panel and year. Once you have
> done
> >> that correctly
> >>
> >> gen growth=D.loggdp
> >>
> >> is sufficient.
> >>
> >>
> >> On Wed, Oct 10, 2012 at 1:41 PM, Lynn Lee <[email protected]> wrote:
> >>
> >> > I use -bysort id: gen growth=D.loggdp- to generate growth rate of GDP
> >> > in panel data. I also wrote -xtset year- before this command, but
> >> > Stata11 told me "time variable not set". I am assuming this command
> is
> >> > only for time-series data. What about panel? What is the command used
> >> > in panel to generate growth rate?
> >> *
> >> * For searches and help try:
> >> * http://www.stata.com/help.cgi?search
> >> * http://www.stata.com/support/faqs/resources/statalist-faq/
> >> * http://www.ats.ucla.edu/stat/stata/
> >>
> >> *
> >> * For searches and help try:
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> >> * http://www.stata.com/support/faqs/resources/statalist-faq/
> >> * http://www.ats.ucla.edu/stat/stata/
> >>
> >>
> >>
> >>
> >>
> >> *
> >> * For searches and help try:
> >> * http://www.stata.com/help.cgi?search
> >> * http://www.stata.com/support/faqs/resources/statalist-faq/
> >> * http://www.ats.ucla.edu/stat/stata/
> >
> > --
> >
> >
> >
> > *
> > * For searches and help try:
> > * http://www.stata.com/help.cgi?search
> > * http://www.stata.com/support/faqs/resources/statalist-faq/
> > * http://www.ats.ucla.edu/stat/stata/
> *
> * For searches and help try:
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*
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