Gebrauchsanleitung für Expertenstandards

Probleme bei der Implementierung l?sen - Trotz der zunehmenden Akzeptanz von Expertenstandards im Pflegealltag zeigen sich bei der Implementierung immer noch deutliche Probleme. In den meisten station?ren und ambulanten Pflegeeinrichtungen sind daher die sieben bisher vom DNQP ver?ffentlichten Expertenstandards nur teilweise umgesetzt.     

Rating model arbitrage in CDO markets: An empirical analysis

We analyze whether information asymmetry between issuers and investors leads to rating model arbitrage in Collateralized Debt Obligation markets. Rating model arbitrage is defined as the issuer's deliberate capitalization of information asymmetry at the investor's cost on the basis of different rating processes. Using data from CDO transactions grouped by both rating agencies and underlying rating methodologies, we test for homogeneity of characteristic transaction features within the group and heterogeneity between the different groups. We find that the hypothesis stating non-existence of rating model arbitrage on the basis of information asymmetry does not hold as individual patterns of transaction characteristics within each group could be identified.     

The role of the customer–seller relationship in the intention of the customer to complain: A study of Chinese restaurateurs

The potential benefits of customer–seller relationships in the area of consumer complaints are seldom advocated, particularly in the relational oriented, Chinese society. The purpose of this paper is to explore how customer–seller relationships affect the intention of Chinese consumers to complain. Given that Chinese are collectivistic by nature, this paper also examined the effect of social approval and pressure on the act of complaining. Several relationships between personal attitudes, the subjective norm, perceived behavioral control, the extent of relational contact and the complaining intention of Chinese consumers were postulated. Results show that the complaining intention of Chinese consumers is influenced by customer–seller relationships and the social pressure on act of complaining while personal attitudes do not have any effect. Possible explanations for the results and implications for researchers and practitioners are presented.     

Timeliness of Spread Implied Ratings

Rating agencies are known to be prudent in their approach to rating revisions, which results in delayed rating adjustments. For a large set of eurobonds we derive credit spread implied ratings and compare them with agency ratings. Our results indicate that spread implied ratings often anticipate the future movement of agency ratings and hence can help track credit risk in a more timely manner. This finding has important implications for risk managers in banks who, under the new Basel 2 regulations, have to rely more on credit ratings for capital allocation purposes, and for portfolio managers who face rating‐related investment restrictions.     

Are regional systems greening the economy? Local spillovers,green innovations and firms’ economic performances

The adoption and diffusion of environmental innovations (EIs) is crucial to greening the economy and achieving win–win environmental/economic gains. A large and increasing literature has focused on the levers underlying EIs that are external to the firm, such as stakeholder and policy pressures. Little attention, however, has been devoted to the possible role of local spillovers of a sector/geographical nature as a factor that correlates with EIs and economic performances. A rich data set that covers the innovative activities and economic performances of firms in the Emilia-Romagna region in Italy, an area dense in manufacturing districts, is analysed. EIs’ drivers and effects on firms’ performance are investigated through a two-step procedure. First, we examine the relevance of spatial levers, namely, whether high rates of eco-innovators in a given local area induce the adoption of EIs in firms located in the same local area. The role of the ‘agglomeration lever’ turns out to be fairly local in nature: we find that spillovers are significantly inducing innovation within municipal boundaries. Second, we test whether EIs adoptions have significantly increased firms’ economic performances and find that some firms’ productivity performances are positively related to EI adoption.     

Asset Allocation by Variance Sensitivity Analysis

This article provides a solution to the curse of dimensionalityassociated to multivariate generalized autoregressive conditionallyheteroskedastic (GARCH) estimation. We work with univariateportfolio GARCH models and show how the multivariate dimensionof the portfolio allocation problem may be recovered from theunivariate approach. The main tool we use is "variance sensitivityanalysis," the change in the portfolio variance induced by aninfinitesimal change in the portfolio allocation. We suggesta computationally feasible method to find minimum variance portfoliosand estimate full variance-covariance matrices. An applicationto real data portfolios implements our methodology and comparesits performance against that of selected popular alternatives.     

Kalai and Muller’s possibility theorem: a simplified integer programming version

We provide a respecification of an integer programming characterization of Arrovian social welfare functions introduced by Sethuraman et al. (Math Oper Res 28:309–326, 2003). By exploiting this respecification, we give a new and simpler proof of Theorem 2 in Kalai and Muller (J Econ Theory 16:457–469, 1977).     

Wages and Teachers’ Hours of Work

This paper seeks to estimate the effect of teachers net marginal wages on their working hours, on the basis of a survey of Dutch teachers. The resulting uncompensated wage elasticity is significantly positive and has an average value of 0.2 for males and 0.4 for females. However, a general wage increase is a rather costly solution to teacher shortages. Alternatively, working full-time can be made attractive for part-time teachers by providing a premium for full-time teachers. This kind of premium provides part-time teachers with a stronger incentive to work full-time, as the negative income effect does not occur. Simulation results show that such a premium produces an effect that is almost seven times as large as a general wage increase.