Keynes (1936) argued that, from a policy perspective, everything that can be achieved by a nominal wage cut can be more effectively achieved through an appropriate monetary policy.
(a) Does this statement hold in the de?cient-demand Keynesian model for a negative shock to (i) aggregate demand and (ii) aggregate labor productivity?
(b) Does this statement hold in the new Keynesian model for a negative shock to
(i) aggregate demand and
(ii) aggregate labor productivity?