What is the best approach to creating a model that can forecast a new industry's contribution to GDP?

[Alexander Hamilton]

Good day STATA lovers,

I am looking for advice pertaining to how I would best approach creating a model that can assess a yet-to-be established industry's contribution to a nations GDP. We are interested in the magnitude of the contribution and forecasting GDP with the new industry.
Other nations have use such an industry but this nation is only going to adopt it in years to come.

Thanks for the assistance!

[Carlo Lazzaro]

Alexander:
welcome to this forum.
I would take a look at -Example 2: Out-of-sample predictions-, -regress postestimation- entry, Stata .pdf manual.

[Alexander Hamilton]

Alexander:
welcome to this forum.
I would take a look at -Example 2: Out-of-sample predictions-, -regress postestimation- entry, Stata .pdf manual.

Thank you for your help Mr. Lazzaro!