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91.
92.
Simone Cerreia‐Vioglio Fabio Maccheroni Massimo Marinacci Luigi Montrucchio 《Mathematical Finance》2011,21(4):743-774
When there is uncertainty about interest rates (typically due to either illiquidity or defaultability of zero coupon bonds) the cash‐additivity assumption on risk measures becomes problematic. When this assumption is weakened, to cash‐subadditivity for example, the equivalence between convexity and the diversification principle no longer holds. In fact, this principle only implies (and it is implied by) quasiconvexity. For this reason, in this paper quasiconvex risk measures are studied. We provide a dual characterization of quasiconvex cash‐subadditive risk measures and we establish necessary and sufficient conditions for their law invariance. As a byproduct, we obtain an alternative characterization of the actuarial mean value premium principle. 相似文献
93.
David J. Ball Simone ten Hag Fons Blankendaal Monique Ridder Piet Heijn Michels Caroline Finch 《International journal of injury control and safety promotion》2013,20(3):205-211
In this study, we assessed the epidemiological patterns of suicide terrorism in the civilian population of Pakistan. Information about suicide terrorism-related events, deaths and injuries was extracted from the South-Asian Terrorism Portal (SATP) for the period from 2002 to October 2009. Of 198 events, civilians were involved in 194 events. Civilians accounted for 74.1% (N = 2017) of those who died and 93.8% (N = 6129) of those who were injured. In nine districts, mortality rates were more than one death per 100,000 inhabitants per year. The yearly trend showed a shift of attack targets from foreigners and sectarian targets in 2002–2005 to security forces or general public in 2006–2009. Attacks on public installations (mosques) or political gatherings resulted in a significantly greater (P ≤ 0.02) number of deaths (22 vs. 8) and injuries (59 vs. 24) per event compared with security installations. These results show that prevention might focus on political negotiation with armed groups and that appropriate measures should be taken to protect mosques and political gatherings. 相似文献
94.
The main purpose of this exploratory analysis is to understand whether, based on evidence gathered from international best
practices selected among corporations which adopt the Global Reporting Initiative guidelines in sustainability reporting (SR),
stakeholders are significantly consulted and involved—as international literature would indicate—by assurance providers, during
assurance processes of SR. We aim at verifying if this practice—known as stakeholder assurance—is in fact widespread in SR
assurance by carrying out empirical research, through content analysis, into a sample of 161 assurance statements of international
corporations, in order to test characteristics of any stakeholder assurance implemented. 相似文献
95.
Simone Schmidt 《Heilberufe》2009,61(9):27-29
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. 相似文献
96.
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. 相似文献
97.
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. 相似文献
98.
99.
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. 相似文献
100.
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. 相似文献