Population-ageing, structural change and productivity growth

Population-ageing is one of the traditional topics of development and growth theory and a key challenge to most modern societies. We focus on the following aspect: Population-ageing is associated with changes in demand-structure, since demand-patterns change with increasing age. This process induces structural changes (factor-reallocations across technologically heterogeneous sectors) and, thus, has impacts on average productivity growth. We provide a neoclassical multi-sector growth-model for analyzing these aspects and elaborate potential policy-impact channels. We show that ageing has permanent and complex/multifaceted impacts on the growth rate of the economy and could, therefore, be an important determinant of long-run GDP-growth.population-ageing; demand shifts; reallocation of factors; cross-sector technology-disparity; GDP-growth; multi-sector growth models; neoclassical growth models; structural change

Statistical Problems and Solutions in Onomastic Research: Exemplified by a Comparison of Given Name Distributions in Germany throughout the 20th Century

The German Socio Economic Panel Study (SOEP) offers the rare opportunity to look at patterns of given names amongst a representative sample of more than 50,000 people born since 1900. This article develops an exemplary picture of typical frequency distributions for given names and their developments over time. In this paper, we first discuss the advantages and limitations of various data bases which have been widely used to study the distribution of given names. Second, we address the problem that name distributions are typically characterized by a "Large Number of Rare Events" (LNRE) zone. With regard to this, we focus our attention on the difficulties associated with comparing name distributions. Third, we apply some measures of the concentration of distributions from other lines of research (economics and computational linguistics). Finally, we stress the problem of the statistical significance of differences in name distributions based on samples.Given names, large number of rare events (LNRE), concentration of distributions, SOEP

The influence of top-down expectations on the perception of syllable prominence

Arnold D, Wagner P. The influence of top-down expectations on the perception of syllable prominence. In: Proceedings of the 2nd ISCA Workshop on Experimental Linguistics (ExLing 2008). 2008: 25-28.In our study we use the experimental framework of priming to manipulate our subjects‘ expectations of syllable prominence in sentences with a well-defined syntactic and phonological structure. It shows that it is possible to prime prominence patterns and that priming leads to significant differences in the judgment of syllable promi- nence. Key words: Top-Down, Priming, Syllable Prominence, Perceptio

High-resolution imaging of kidney vascular corrosion casts with nano-CT

A vascular corrosion cast of an entire mouse kidney was scanned with a modular multiresolution X-ray nanotomography system. Using an isotropic voxel pitch of 0.5 mu m, capillary systems such as the vasa recta, peritubular capillaries and glomeruli were clearly resolved. This represents a considerable improvement over corrosion casts scanned with microcomputed tomography systems. The resolving power of this system was clearly demonstrated by the unique observation of a dense, subcapsular mat of capillaries enveloping the entire outer surface of the cortical region. Resolution of glomerular capillaries was comparable to similar models derived from laser scanning confocal microscopy. The high-resolution, large field of view and the three-dimensional nature of the resulting data opens new possibilities for the use of corrosion casting in research

Between-Person Disparities in the Progression of Late-Life Well-Being

Throughout adulthood and old age, levels of well-being appear to remain relatively stable. In this chapter, we argue that focusing on a phase of life during which this positive picture does not necessarily prevail promises to help us better understand between-person disparities in the progression of late-life well-being. In a first step, we review empirical evidence from the German Socio-Economic Panel and other large-scale longitudinal data sets to demonstrate that ubiquitous reports of a "stability-despite-loss phenomenon" of well-being do not generalize into years of life immediately preceding death. Instead, mean-level representations of the end of life are characterized by a rapid deterioration in well-being. In a second step, we highlight the vast heterogeneity in how people experience the last years and consider the role of biopsychosocial individual difference factors to account for such disparities. The select factors reviewed here include socio-demographic characteristics, cognitive fitness, pathology, and disability. In a third step, we argue that macro-contextual factors such as the social, service, and physical characteristics of the communities and societies people are living and dying in also profoundly shape the nature and progression of individual late-life well-being. Our conceptual reasoning forecasts some of the insights that can be gained by pursuing this line of research, but also underscores the challenges researchers must deal with.Late-Life Well-Being, SOEP, BHPS, HRS

Comparing word and syllable prominence rated by naïve listeners

Prominence has been widely studied on the word level and the syllable level. An extensive study comparing the two approaches is missing in the literature. This study investigates how word and syllable prominence relate to each other in German. We find that perceptual ratings based on the word level are more extreme than those based on the syllable level. The correlations between word prominence and acoustic features are greater than the correlations between syllable prominence and acoustic features