Dear R Core Team,
I am using package {urca} to do cointegration and estimate ECM model,
but I have the following two problems:
(1) I use ca.jo() to do cointegration first and can get the
cointegration rank, alpha and beta. The next step is to test some
restrictions on beta with blrtest(),bh5lrtest(), and bh6lrtest(). But
none of them can add restrictions on all the cointegration equations at
the same time if have more than one cointegration rank. For example,
there are three cointegration in my case. I want to add three different
restrictions on them at the same time. What can I do?
(2) What I want to do is to estimate ECM model with imposing
restriction on beta or on both alpha and beta at the same time. It
looks like that command cajo.test() can do this estimation. It shows up
in the package but there is no example there. I tried to find some
examples but I cannot find any even if I have read the book Analysis of
Integrated and Cointegrated Time Series with R. Can you show me how to
use this command or some examples?
Thank you very much in advance. Best wishes.
Christina
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