Am 25.05.2010 17:02, schrieb Claudio Shikida (敷田治誠 クラウジオ): > Yes, but just as independent variables. I cannot include them as > instruments. That´s my question. Thanks for answering me, but the > problem persists for me. If you can use lags as instruments, so my > version has some bug. >
which immediately begs the question which version you are using (and on which platform) because with currrent 1.9.0 I'm perfectly able to choose lags as instruments! -sven
