ARDL Model

[Sal]

In estimating the ARDL model, we select the trend specification. In the current version (9), there are four options to choose from:
1) None
2) Rest. constant
3) Unrest. constant
4) Rest. linear trend

My question is about option 4) Rest. linear trend . When selecting this option, it gives the estimated long-run relationship without the constant. I would like to have both the constant and the trend in the estimated long-run relationship. Any idea why there is no constant in this case? I remember that the constant and the trend were both available in option 4 in the Beta version 9.

Thanks,
Sal

[EViews Gareth]

That option is not currently available.

[Sal]

Thank you for the quick response. Do you know if this option will be available in the coming updates?

Thanks,

Sal

[Sal]

Technical question. What is the maximum number of lags to use in the ARDL model for daily data (oil and stock returns)? Any ideas.

Thanks,

Sal