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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

That option is not currently available.

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

Thanks,

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