The computation of large-scale nonlinear intertemporal optimization problems requires time aggregation. A procedure generally adopted is shown to introduce a dependency of the solution steady state to a specific choice of sequence of time intervals. The authors establish necessary and sufficient...

We provide a theoretical treatment of temporal aggregation in models that exhibit long-term endogenously-generated steady growth; hence generalizing our previous analysis (Econometrica 62, 1994, pp. 635-56). We introduce the property of steady-growth invariance - that the long-term growth of the...