“…Now, it is noteworthy that the overlapping-generations cash-in-advance specification, which is adopted herein too, postulates a Diamond (1965) utility function of consumption when young and consumption when old; and it does so almost uniformly in the relevant literature (see e.g. Yanagihara and Lu, 2013;Gahvari, 2009;Smith, 2003;Crettez et al, 1999;Qi, 1994, and the subsequent literature). Nevertheless, policymaking should be approached under a social planner's viewpoint, and hence, based on a social welfare function incorporating explicitly the standard analytical parable of monetary overlapping-generations modeling according to which the young and the old are two different concurrent generations, with the former altering behavior as they age (see e.g.…”