3) Question. All else equal, take the representative household's budget constraint and plug the implicit profit equation into the same, cancelling out terms. 4) Question. All else equal, display the laws of motion for consumption (i.e. first and third household FOCs), labour supply (i.e. second household FOC), labour demand (i.e. first firm FOC), capital return (i.e. second firm FOC), the aggregate resources (i.e. explicit household budget constraint), output (i.e. production function) and technology (i.e. productivity equation) and express consumption, capital and output as trend non-stationary variables, that is, as X, = aff, for X = C, K, Y and x = c, k, y. NB. FOC stands for first order condition