Difference between 2 coefficients and t-stats

[Aneta Smith]

Hello, I am wanting to find the difference between two groups (regressions) and test the difference between two coefficient and t-stat from my data set. I have attached a picture of a table from a published article to illustrate what I mean, (this is the difference between model 5 and 6 in the attached picture).

I would also like to find out how to work out the Interaction for 2 variables, for example D_DGDP X DGDP from the picture (see the highlighted part of the picture).

Please can you help me by letting me know which commands I should be using to calculate the above for my data.

Thank you

[Andrew Musau]

Hello, I am wanting to find the difference between two groups (regressions) and test the difference between two coefficient and t-stat from my data set. I have attached a picture of a table from a published article to illustrate what I mean, (this is the difference between model 5 and 6 in the attached picture).

Look at the suest command.

help suest

I would also like to find out how to work out the Interaction for 2 variables, for example D_DGDP X DGDP from the picture (see the highlighted part of the picture).

With factor variables, use ## to include both main effects and the resulting interaction(s). With two continuous variables "var1" and "var2", specifying c.var1##c.var2 will include var1, var2 and var1\(\times\)var2 in the regression. See

help fvvarlist

[Aneta Smith]

Hello Andrew,

Sorry for the late reply.. Thank you very much for your help that has worked.

Regards

Aneta