A political miracle occurred when Germany was reunited, and at first glance an economic miracle has followed. Real incomes in the east have now reached the western level, and investment per capita has been much higher than in the w est. However, every third deutschmark spent in the east has been...

Based on explicit present value calculations, the paper criticizes the view that the PAYGO system wastes economic resources. In present value terms, there is nothi ng to be gained from a transition to a funded system even though the latter offers a permanently higher rate of return. The sum of...