The Multisurface Obstacle Test for Older Adults (MSOT): development and reliability of a novel test for older adults

Locomotion is an essential component of independence and well-being at old age. Performance deficits in the gait of older adults most often become evident on multisurface and varying terrains. Research results substantiate that falls occur in everyday movement situations that are characterized by instability. A test track, the Multisurface Obstacle Test for Older Adults (MSOT), was developed to diagnose individual performance. The 10-m track consists of different obstacles and varying surfaces, which represent everyday movement situations in a compact way. Twenty-nine untrained, healthy older adults (11 men, 18 women) were tested on three different days at 1-week intervals in a test–retest design by the same conductor. Mean age of the participants was 68.8?±?5.3 years with a mean body mass index of 24.4?±?2.5 kg/m². The measured outcome variable was the required time (seconds) on the MSOT. The feasibility for the tested sample of untrained older adults was very good. The MSOT was undertaken safely by the participants, and no falls occurred. The range of the mean for time was between 8.12?±?1.53 s and 9.00?±?1.62 s. Regarding intertrial reliability, mean differences (MD) of ?3.39 to ?5.52 % and coefficients of variation (CV) of 2.72 to 4.19 % between the first and second trials and MD of ?0.69 to ?0.85 % and CV of 2.57 to 4.54 % over the three test sessions were observed. The correlation coefficients between the sessions were .92–.98. There were significant differences (p?<?.05) between the first and second trials of each session and between the first and second sessions. The smallest detectable differences (SDD) revealed that a small improvement is enough to detect changes in performance in the MSOT. Selecting tasks from real-life situations of older adults contributes to substantiate practical usability of the MSOT. The measured time on the MSOT showed high relative and absolute reliability in the target group of older adults between 60 and 80 years.     

Delinking of economic growth and materials turnover

National material flow analyses and materials balances are indispensable sources of information with respect to the operationalizalion of sustainable development. Both of these instruments are already employed in official statistics in Germany and Japan, and other countries—especially member slates of the European Union—are likely to follow suit. Because of the preparatory stages of work that have already been carried out, Austria is in an excellent position to assume a leading role in international concerted action. From 1970 to 1990 total materials flow through Austrian society has approximately increased by one third. As can be seen from changes in the amount of primary energy used during this period, economic growth in physical terms and value added in production decoupled slightly, and the same is true for the use of materials. Since 1970, materials input per unit of GDP (material intensity) decreased by 25%. This implies that relative gains in efficiency are compensated by the annual increases in the use of materials which, by and large, are caused by few yet massive ‘strategic’ material flows of steel, cement, wood, paper/pulp, sand, gravel and crushed stone. The empirical findings suggest that delinking of economic growth from the metabolism of human society should be discussed more carefully. The concept of ‘delinking’ involves two alternative perspectives of development differing from each other with respect to their ecological effects. The analysis may either focus upon absolute changes in materials throughput or on the relative changes of materials throughput per unit of output. It is strongly recommended, therefore, to distinguish clearly between relative and absolute productivity of resources. Branch analyses confirmed, once again, that the information contained in material indicators related to value‐added concepts is relatively insignificant when it comes to evaluation of the social ‘pressures upon the environment’.     

Verteilungseffekte von Finanzialisierung

Financialisation is often associated with rising income inequality. The article describes the major aspects of financialisation in the foreign, financial, business and household sector, and identifies several hypotheses how financialisation affects functional income distribution. We discuss enhanced exit options of firms, rising financial overhead costs for businesses, increased competition in capital markets, and weakened bargaining power of workers due to indebtedness. The different hypotheses are operationalised through empirical measures and their effect on the wage share is tested econometrically by means of a panel data set of 14 OECD countries over the period 1992–2014. We find statistically significant negative effects of financial payments of firms and financial openness on the wage share.     

New venture financing in Germany: Effects of firm and owner characteristics

Entrepreneurial activity by new ventures is an important driver of economic growth. Yet obtaining sufficient and/or appropriate financial means often represents a considerable challenge to entrepreneurs. Notably, reliable empirical evidence on financing patterns of young enterprises in Germany has so far been scarce. Using data from the KfW/ZEW Start-up Panel, a new large-scale dataset of newly founded ventures, we provide a comprehensive overview of financing structures and their firm- and owner-related drivers in German start-ups within the first months of their existence. Conceptually, we find pecking-order theory to hold for new ventures in Germany, although individual motives lead to partially deviant financing patterns. Moreover, our findings indicate that the extent of financing and the choice of capital sources are both driven by a multitude of firm as well as owner characteristics.     

Intergenerational earnings mobility and divorce

This paper examines the potential effect of marital disruption on intergenerational earnings mobility. We observe the earnings of children born in 1960 and 1970 along with their biological fathers and mothers. The earnings mobility between sons and daughters relative to the earnings of their mothers and fathers is estimated. Our results suggest that divorce is associated with increased mobility, except between mothers’ and daughters’ earnings. Transition matrices reveal that the direction of the mobility is negative; children of divorced parents tend to move downward in the earnings distribution compared to children from intact families. Finally, we utilize information on the earnings mobility of siblings in dissolved families who grew up when the family was intact. The difference between pre- and post-divorce siblings is in turn compared with sibling differences in intact families.     

A Short Note on the Dependence Structure of a Stochastic Process Generated by the Asymmetric Cusp Map

Intermittency maps are well-known to be capable of generating stochastic processes with slowly decaying cross covariances. The present paper considers the asymmetric cusp map and derives an asymptotic lower bound of the autocovariance function of a stochastic process generated by this map. As a consequence, such a stochastic process is shown to belong to the class of long memory processes.