Micro-econometric intra-cohort profitability analyses of pay-as-you-go (PAYG) pension contributions are rare. We use representative employment histories of German PAYG pension insurants retiring in year 2005 to examine the determinants of the profitability of contributions using nominal internal rates of return (IRR) as measure. When future nominal pension entitlements are frozen at today's level, average IRR is about three percent. It increases in beneficiaries' remaining life expectancies at retirement and in the length of non-contribution periods resulting, for example, from child care. Interestingly, IRR is decreasing in insurants' earnings capacity, indicating that the system entails an intra-cohort progressive element.

We present a new database of social security indicators for 11 Latin-American countries designed to show how much they promise to pay in return to contributions. These are based on micro-simulations according to existing norms. We use response-surface analysis to characterize simulation results. Our results indicate that most programs are progressive. The length of service (LOS) has a strong impact on the expected returns to contributions. In several programs, the expected rates of return exhibit striking discontinuities in the LOS, mostly due to vesting period conditions. This implies these programs may be exacerbating income risk.

This paper examines differences between immigrant and native employees in retirement plan participation using SIPP data. We find that the participation rate among natives is 60 percent, while the native-immigrant participation gap ranges from 10.9 percentage points for naturalized citizens to 35.4 percentage points for non-permanent residents. Controlling for demographic and job characteristics can explain up to half of the gap. Decomposing the overall immigrant-native difference into differences in employer offers, plan eligibility, and plan take-up shows that the likelihood of working for an employer that offers a plan is the primary driver of the overall gap.

The paper analyzes the recent pension reform in Germany which increases the normal retirement age by two years. The applied simulation model features a realistic demographic transition, distinguishes three skill classes with different life expectancies and allows individuals to choose their labor supply at the intensive and the extensive margin.

Our simulation results indicate that under the existing pension rules long-run contribution rates and old-age poverty rates will increase considerably. The proposed rise in the normal retirement age will postpone effective retirement by about one year and redistribute towards future cohorts. A stronger delay in effective retirement may be achieved by raising the actuarial adjustment of benefits.

The main aim of this paper is to decompose the effects of social security on private savings and quantify to what extent each factor that impacts saving behavior account for the effects of social security. For this purpose, I estimate a stochastic dynamic model in which households facing income and survival uncertainty choose optimal levels of consumption, asset holdings and labor supply. In this model, social security pensions reduce private assets by less than 10%. Bequest and precautionary savings motives are the main reasons of this partial offset. Uncertainty on future benefits has no role to play on the effect.

We present empirical evidence on the funding and portfolio allocation of around 200 Dutch corporate pension funds over the period 1996-2005, with a special focus on the influence of the sponsoring firm. We find that unprofitable and small firms contribute less to their pension funds than profitable and large firms, consistent with theories of capital market imperfections. Sponsor contributions are found to be positively correlated with leverage, suggesting that tax effects play a role. Defined benefit funds invest relatively more in equity and less in bonds than their defined contribution counterparts, which is in accordance with the risk shifting theory.