Aging creates financial troubles for PAYG pension systems, since the share of retirees to workers increases. An often advocated policy response is to increase retirement age. Ironically, however, the political support for this policy may actually be hindered by population aging. Using Swiss...

Solidarity, a key element of any social security system, can be defined as the total intended redistributions that take place between the existent groups within the system, with the purpose of helping each other. However, unintended redistributions also exist, affecting the fairness of the...