I'm sorry but your answer is not helping me much, it only raises new
questions for me. WHAT does the speed of adjustment say about real changes
in the variable I am interested in? WHAT is equilibrium in this context,
more than just an abstract theoretical construct? HOW do I interpret the
changes in the IRF?
More specifically, I would like to know what unit the changes in the IRF
measured in. Is it one standard deviation shock in the independent variable
on the dependent variable, measured in the unit of a standard deviation in
the dependent variable of the independent variable? Yes, I know a VAR/VEC
is a system etc.
Cheers,
Lars
2018-04-29 12:14 GMT+02:00 Sven Schreiber <svetosch(a)gmx.net>:
Am 27.04.2018 um 20:28 schrieb lasses skola:
> Hi! I have a question regarding VECM and IRF interpretation in Gretl.
>
Hi, to be clear, this is not about an interpretation _in Gretl_, it's a
more generic question, there's nothing gretl specific here.
Which -I presume- is why no answers have followed so far.
According to the speed of adjustment coefficient in the VEC, the target
> variable adjusts at a speed of 15,5% per year to equilibrium. But the IRF
> says that the cumulative change in the target variable is only 2% from year
> four trough the time horizon of the IRF, which is nine years. How can I
> interpret this?
>
This is a system there is no such thing as *the* target variable.
Apart from that, the two magnitudes have very little in common. You could
have a case where the first variable is not reacting/adjusting at all to
disequilibria, and still you could get a long-run permanent effect because
of the other dynamics.
cheers,
sven
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