Functional form o We've seen that a linear regression can really fit nonlinear relationships Can use logs on rhs, lhs or both o Can use quadratic forms ofx's Can use interactions ofx's o How do we know if we' ve gotten the right functional form for our model? Economics 20- Prof andersonEconomics 20 - Prof. Anderson 2 Functional Form We’ve seen that a linear regression can really fit nonlinear relationships Can use logs on RHS, LHS or both Can use quadratic forms of x’s Can use interactions of x’s How do we know if we’ve gotten the right functional form for our model?