Analyzing the value of deals in joint ventures. Made two samples: domestic joint ventures per year, international joint ventures. (In a group of countries.)
The main focus would be weather the international deal values are different than the domestic ones.

Should I run two regression models or one?
Dependent: deal value
Control variables: inflation, GDP PPP etc.
Independent: *this would be weather domestic or international*

So maybe Model 1 would measure the effect of the controls on the deal value in terms of domestic deals, while Model 2 the same for international deals? Hence not using the independent variable, only the dependent + control.