Which of the following statements are INCORRECT? "When faced with income shocks, household may not be able to smooth their consumption due to credit market exclusion that hinders their ability to borrow." "Any estimate of potential output will have shortcomings, and for this reason, policy makers do not use output gap to make policy decisions." "In the case of a negative aggregate demand shock that brings output below potential, there is no need of central bank intervention as there is no inflationary pressure in the economy." "When the economy is at its potential output, actual unemployment is equal to equilibrium unemployment"