Profitability of Pension Contributions: Evidence from Real-Life Employment Biographies

Micro-econometric intra-cohort profitability analyses of pay-as-you-go (PAYG) pension contributions are rare. We use representative employment histories of a birth cohort of German PAYG pension insurants retiring in year 2005 to econometrically examine the determinants of the profitability of such contributions using nominal internal rates of return (IRR) as profitability measure. When future nominal pension entitlements are frozen at today's level, average IRR is slightly above three percent. At the same time, IRR differs substantially across beneficiaries. IRR is increasing in beneficiaries' remaining life expectancies at retirement and in the length of non-contribution periods resulting, for example, from child care or care for an ill partner. Due to survivor pensions, married insurants benefit from higher IRR as compared to the non-married. Interestingly, IRR is decreasing in insurants' earnings capacity, indicating that the system entails an intra-cohort progressive element.Pay-as-you-go, pensions, rate of return, redistribution, employment biography

Equivalence scales reconsidered – an empirical investigation

Households can differ in size and needs. A reliable assessment of inequality in living standards, therefore, necessitates the conversion of the original heterogeneous into an artificial quasi-homogeneous population. Ebert and Moyes (2003) and Shorrocks (2004) theoretically explore the properties of two conversion strategies, i.e., to calculate household equivalent incomes and then to weight household units by their size vs. their needs. We use data from the Luxembourg Income Study for examining the sensitivity of the Gini and the Theil index to the chosen conversion strategy, and explain our results by means of an inequality decomposition by household types. Country inequality rankings are sensitive to the conversion strategy applied. The decomposition analysis reveals the underlying mechanisms. We find inequality estimates typically to be lower in the size-weighted distribution compared to needs-weighting. This is driven by relatively higher weights of large household units in case of size weighting in combination with inequality being typically below average among households with children.income distribution, inequality, inequality decomposition, equivalence scale.

The German spatial poverty divide: poorly endowed or bad luck?

We study inter-temporal changes in poverty for Germany from year 1978 to 2003, and we employ the bootstrap method to test for statistical significance of results. All results are decomposed by household type and region. Poverty estimates are particularly high for single parents. Most striking, however, is the poverty divide between the old and newly-formed German Federal States, with poverty being significantly higher in the latter. We conduct a nonlinear Oaxaca-Blinder decomposition to quantify the separate contribution of regional differences in households’ characteristics to the probability of being poor.Poverty, decomposition, expenditure patterns, necessities, Oaxaca-Blinder decomposition, bootstrap, equivalence scale.

Equivalence scales reconsidered: an empirical investigation

Income-expenditure surveys typically provide incomes on the household level. As households can differ in size and needs, a reliable assessment of inequality in living standards, therefore, necessitates the conversion of the original heterogeneous into an artificial quasi-homogeneous population. Ebert and Moyes (2003) and Shorrocks (2004) theoretically explore the properties of two alternative conversion strategies: a weighting of household equivalent incomes by size and by needs. We use data from the Luxembourg Income Study for examining the sensitivity of the Gini and the Theil index to the chosen conversion strategy, and explain our results by means of an inequality decomposition by population subgroups. --income distribution,inequality,inequality decomposition,equivalence scale

Country Inequality Rankings and Conversion Schemes

Two conversion schemes are usually employed for assessing personal-income inequality from household equivalent incomes: to weight household units by size or by needs.Using data from the Luxembourg Income Study, we show the sensitivity of country inequality rankings to conversion schemes and explain the finding by means of inequality decomposition. A bootstrap approach is implemented to test for statistical significance of our results.inequality, equivalence scale, equivalent income, weighting scheme,decomposition

On the redistributive effects of Germany's feed-in tariff

The present article assesses the redistributive effects of a key element of German climate change policy, the promotion of renewables in the electricity mix through the provision of a feed-in tariff. The tariff shapes the distribution of households' disposable incomes by charging a levy that is proportional to household electricity consumption, and by financial transfers channeled to households feeding green electricity into the grid. Our study builds on representative household survey data, providing information on various socio demographics, household electricity consumption and ownership of solar facilities. The redistributive effects of the feed-in tariff are evaluated by means of various inequality indices. All the inequality measures indicate that Germany's feed-in tariff is mildly regressive. --Income distribution,redistribution,tax incidence,renewable resources,energy policy

Eliciting Public Support for Greening the Electricity Mix Using Random Parameter Techniques

With its commitment to double the share of renewable fuels in electricity generation to at least 30% by 2020, the German government has embarked on a potentially costly policy course whose public support remains an open empirical question. Building on household survey data, in this paper we trace peoples‘ willingness-to-pay (WTP) for various fuel mixes in electricity generation, and capture preference heterogeneity among respondents using random parameter techniques. Based on our estimates, we trace out the locus that links the premia charged for specifi c electricity mixes with the fraction of people supporting the policy. Albeit people‘s WTP for a certain fuel mix in electricity generation is positively correlated to the renewable fuel share, our results imply that the current surcharge eff ectively exhausts the fi nancial scope for subsidizing renewable fuels.Green electricity; willingness-to-pay; preference heterogeneity; policy evaluation

Economies of Scale in Production versus Diseconomies in Transportation: On Structural Change in the German Dairy Industry

This paper analyzes the structural change in the German dairy sector using a sector-wide optimization model. In particular, the model includes a spatially explicit representation of dairy processing farms and dairy farming regions to account for the trade-off between economies of scale in dairy production and diseconomies of scale in transportation. We simulate cost-optimal sectoral structures for different time horizons and various transport cost levels. The results demonstrate that the model is able to explain the trend towards fewer but larger dairies as currently observed in reality and indicate, ceteris paribus, a continuation of this trend. However, if the importance of transport costs increases relative to other costs in dairy production this trend might level off. The structural impacts found differ markedly by region.Capacitated facility location problem, structural change, transportation, simulation

Poverty in Germany: Statistical Inference and Decomposition

Based on six harmonized cross-sections of the German Sample Survey of Income and Expenditure, we study inter-temporal changes in poverty from year 1978 to 2003. Results are decomposed by region and household types, and the bootstrap method is applied to test for the statistical significance of all our findings. Across household types, single parents with children have the highest poverty risk. Most striking is a huge regional divide in poverty which only narrows slightly over the period under investigation: the incidence and the intensity of poverty are substantially higher in the New states. A nonlinear Oaxaca-Blinder decomposition is conducted to quantify the separate contribution of regional differences in households' characteristics to the likelihood of being poor. Estimates from the decomposition indicate that differences in the distributions of socioeconomic characteristics play a negligible role for the 1993 poverty divide. Already in year 2003, however, differences in the distributions of characteristics explain more than fifty percent of the poverty divide, indicating that the poverty divide is likely to become a persistent phenomenon.poverty, Oaxaca-Blinder decomposition, bootstrap, equivalence scale

The German spatial poverty divide: poorly endowed or bad luck?

We study inter-temporal changes in poverty for Germany from year 1978 to 2003, and we employ the bootstrap method to test for statistical significance of results. All results are decomposed by household type and region. Poverty estimates are particularly high for single parents. Most striking, however, is the poverty divide between the old and newly-formed German Federal States, with poverty being significantly higher in the latter. We conduct a nonlinear Oaxaca-Blinder decomposition to quantify the separate contribution of regional differences in households' characteristics to the probability of being poor. --Poverty,decomposition,expenditure patterns,necessities,Oaxaca-Blinder decomposition,bootstrap,equivalence scale