Wirbelsäulenerkrankungen —Praxisfälle aus der Versicherungsmedizin

Back problems are very widely spread among the population and incur a high cost for the public at large. Screening methods such as X-rays, CTs and so on frequently help to diagnose degenerative changes to the spine, which are then regarded as the cause of the pain. However, other causes (e. g. psychosomatic causes) are also frequently at the root of the back pain. The implications that back problems have for private occupational disability insurance are explained in this article.     

The “sugar rush” from innovation subsidies: a robust political economy perspective

The governments of most advanced countries offer some type of financial subsidy to encourage firm innovation and productivity. This paper analyzes the effects of innovation subsidies using a unique Swedish database that contains firm level data for the period 1997–2011, specifically informa tion on firm subsidies over a broad range of programs. Applying causal treatment effect analysis based on matching and a diff-in-diff approach combined with a qualitative case study of Swedish innovation subsidy programs, we test whether such subsidies have positive effects on firm performance. Our results indicate a lack of positive performance effects in the long run for the majority of firms, albeit there are positive short-run effects on human capital investments and also positive short-term productivity effects for the smallest firms. These findings are interpreted from a robust political economy perspective that reveals that the problems of acquiring correct information and designing appropriate incentives are so complex that the absence of significant positive long-run effects on firm performance for the majority of firms is not surprising.     

Retail investor information demand – speculating and investing in structured products

We study the impact of retail investor information demand on trading in bank-issued investment and leverage structured products, which are specifically designed for retail investors. Stock-specific information demand positively predicts speculative trading activity. Furthermore, we find a positive relationship between market-wide information demand and order aggressiveness and order uncertainty for speculating and investing activity. Whereas information supply is associated with speculative long positions, information demand does not induce investors to be predominantly long or short. Finally, we do not find retail investor information demand to contribute to an upward price pressure on security prices. In contrast, information supply exerts negative price pressure. Overall, retail investor trading in individual stocks is much more strongly influenced by market-wide information demand instead of firm-specific information demand. This implies a low informational efficiency of retail investor speculation and investing activity.     

Do people behave in experiments as in the field?—evidence from donations

Laboratory experiments are an important methodology in economics, especially in the field of behavioral economics. However, it is still debated to what extent results from laboratory experiments are informative about behavior in field settings. One highly important question about the external validity of experiments is whether the same individuals act in experiments as they would in the field. This paper presents evidence on how individuals behave in donation experiments and how the same individuals behave in a naturally occurring decision situation on charitable giving. While we find evidence that pro-social behavior is more accentuated in the lab, the data show that pro-social behavior in experiments is correlated with behavior in the field.      

Persistence of full- and part-time farming in Southern China

The goal of this study is to assess the dynamics of rural households' labor market participation in the wake of China's efforts to develop rural labor markets in a manner that is conducive to its transition to a market economy. Based on a theoretical model that emphasizes the impact of duration, i.e. of the number of years households spent part-time farming or full-time farming, respectively, we investigate the shifts between these two states. We also identify socioeconomic factors that determine these shifts. The empirical study is based on discrete time hazard approaches, using micro-level panel data from Zhejiang, Hubei, and Yunnan provinces from 1995 to 2002.Estimation results suggest relatively high chances of shifts from full-time to part-time farming and a considerable lower risk for the shift in the opposite direction. Significant negative duration dependence is found for the move from full-time to part-time farming suggesting lock-in effects. In addition, we find that labor market participation decisions are significantly related to several household, farm and village characteristics. In particular, the likelihood of shifts from full-time farming to part-time farming is positively related to the educational level of households' workforce.     

Audit committee characteristics and firm performance during the global financial crisis

We address the question ‘do governance enhancing audit committee (AC) characteristics mitigate the firm performance impact of significant‐adverse‐economic events such as the Global Financial Crisis (GFC)?’ Our analysis reveals that smaller audit committees with more experience and financial expertise are more likely to be associated with positive firm performance in the market. We also find that longer serving chairs of audit committees negatively impacts accounting performance. However, accounting performance is positively impacted where ACs include blockholder representation, the chair of the board, whose members have more external directorships and whose chair has more years of managerial experience. We contribute to the growing body of research on the impact of audit committee governance attributes on performance during times of financial distress.