Pay-as-you-go pension programs can help to share risk amongst generations.While a wage-indexed pension program is best suited to share labor income risk,I show that the combination of stochastic labor income and stochastic populationgrowth may reduce the possibilities for intergenerational risk...

A pay-as-you-go (paygo) pension program may provide intergenerational pooling of risks toindividuals´ labor and capital income over the life cycle. By means of a model that providesilluminating closed form solutions, we demonstrate that the magnitude of the optimal paygoprogram and the nature...