In Germany, there is an ongoing debate about how to increase the efficiency of the social security system and especially its financing. The aim of this paper is to simulate different financing systems for Germany. The introduction of a Liberal British or the Southern Greek financing system...

We analyze the interaction between risk sharing and capital accumulation in a stochastic OLG model with production. We give a complete characterization of interim Pareto optimality. Our characterization also subsumes equilibria with a PAYG social security system. In a competitive equilibrium...

In many OECD countries, the majority of social spending is financed from earmarked revenues, and a large share of revenues earmarked for any type of government spending is used for social purposes. Tying revenue sources to specific expenditure categories has a number of potential advantages and...

We exploit a unique Swiss reform to identify the importance of passivity, claiming social security benefits at the Full Retirement Age (FRA). Sharp discontinuities generated by the reform reveal that raising the FRA while imposing small early claiming penalties significantly delays pension...

In this paper, I estimate the fiscal impact of immigrants on the German pension insurance (PI) and unemployment insurance (UI) systems when return migration is an endogenous choice. For this purpose, I develop a dynamic stochastic model of joint return migration and saving decisions that...

Regarding social needs in Germany long-term care is an important issue due to an ageing population. Shrinking social networks are leading to a greater need for a public long-term care system. In 1995 the social long-term care insurance was introduced in Germany. In recent years some drawbacks of...

How will international integration affect welfare policies? This paper considers the possibilities of financing public sector activities (public consumption and social security expenses) by general (wage) taxation in an economy which becomes more integrated in international product markets. Even...

Governments are responding to fiscal pressures associated with aging populations by increasing the eligibility age for publicly-funded retirement benefits. However, recent studies show large resulting increases in the receipt of alternative payments, which raises concern that welfare savings are...

We suggest a political economy explanation for the stylized fact that intragenerationally more redistributive social security systems are smaller. We relate the stylized fact to an "efficiency-redistribution" trade-off to be resolved by political process. The inefficiency of social security...

This article studies how social insurance programs shape individual's incentives to take up registered employment and to report earnings to the tax authorities. The analysis is based on a social insurance reform in Uruguay that extended healthcare coverage to the dependent children of registered...