Bubbles and money holding can reabsorb capital overaccumulation and restore the MGR in exogenous growth OLG economies. In contrast, under productive externalities and endogenous growth, bubbles and monetary saving can worsen an already inefficient underaccumulation. Under a simple credit market...

We study the implications of constant money growth rules on the stability properties of the equilibrium, in economies where agents are subject to a partial cash-in-advance constraint applying simultaneously to consumption and investment purchases. By reference to similar models in which the...

We consider an overlapping generations economy with altruism towards parents and a long-lived asset that delivers no dividends (pure bubble asset). We explore the role of ascendant altruism on the dynamics properties of equilibrium and rational bubbles in the cases of exogenous and endogenous...

We address the fundamental issues of existence and efficiency of an equilibrium in a Ramsey model with many agents, where agents have heterogeneous discounting, elastic labor supply and face borrowing constraints.The existence of rational bubbles is also tackled. In the first part, we prove the...