Macroeconomists tend to study GDP in terms of macro variables.
Microeconomists study general equilibrium (among other thinga of course).
Is there theory about the relation between general equilibrium and GDP? Where should I look for this?
Economics Stack Exchange is a question and answer site for those who study, teach, research and apply economics and econometrics. It only takes a minute to sign up.Sign up to join this community
Macroeconomics nowadays tend to require microfoundations. As a result, general equilibrium are more of a topic for macro than micro analysis. The dynamic stochastic general equilibrium (DSGE) model and its variants underlie much of macroeconomic analysis nowadays.
You would probably be interested in the identification of Balanced Growth Path (BGP) . It one of the topics covered in advanced macroeconomics.
David Romer gives it a good treatment in his book advanced macroeconomics.