题是英语的consider the simple olg model,with a constant polulation and constant money supply.now let us keep the assumption of a constant money stock. but instead of assuming that the population remains constant let us assume that each period 't'
the number of young people born in that period,'Nt' evolves according to
Nt=nNt-1, where n大于1

求
1,derive the golden rule
2,derive the stationary monetary equilibrium and compare it to the golden rule.