Significance of marginal effects in linear regression with interaction term.

[Jakob Abekhon]

Hello,

I am running the following regression:

 
reg stdnutrition stdlogdeficit stdinfrastructure c.stdlogdeficit#c.stdinfrastructure

where all variables are standardised.

I want to determine the minimum and maximum values of "stdinfrastructure" at which the marginal effect of "stdlogdeficit" on "stdnutrition" is significant.

And vice versa the minimum and maximum values of "stdlogdeficit" at which the marginal effect of "stdinfrastructure" on "stdnutrition" is significant.


Thank you for your help!