In the early 1950s Modigliani, with Brumberg and Ando, formulated the life-cycletheory of consumption and savings that enjoyed a huge and undisputed success. But, since the early 1980s, the life-cycle theory has increasingly come under attack. One reason is the existence of an important...

This paper analyses the determinants of public expenditures allocated to investment. We perform welfare analysis in an overlapping generations model with public consumption, public investment, debt and taxes. The optimal public investment share depends positively on the productive contribution...

Several recent studies imply that the response of national saving to fiscal policy is non-monotonic. In this paper, we use two data sets to search for the circumstances in which such non-monotonic responses arise: one refers to a sample of OECD countries, as in previous studies, and one to a...