We study a quality-ladder model of endogenous growth that produces stochastic leadership cycles. Over a cycle, industry leaders can innovate several successive times in the same industry, gradually increasing the magnitude of their technological lead before being replaced by a new entrant....

This article studies how demography affects the outcome of the environmental policy in a macro-economic perspective, incorporating age-earning profiles in an OLG model à la Blanchard (1985) to capture the age structure effect of the demographic shocks. It first demonstrates, conversely to...

Micro data over the life cycle shows two different patterns of consumption of housing and non-housing goods: the consumption profile of non-housing goods is hump-shaped while the consumption profile for housing first increases monotonically and then flattens out. This paper develops a rich,...