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71.
Stakeholder maneuvers such as Internet media attacks or consumer boycotts can have devastating effects on companies. By contrary, vital relationships between companies and their stakeholders can be highly beneficial. A review of the existing stakeholder-management literature suggests to engage stakeholders in business activities in a positive manner. However, the types of successful engagement activities differ across industries. The purposes of this article are to develop an explanatory framework based on the literature findings, to introduce stakeholder-engagement literature to a segment of the water sourcing industry, and to unfold industry’s stakeholder-engagement measures. Based on a content analysis of 11 cases, we investigate if and how companies in the natural mineral water bottling industry in Austria inform, communicate, and therefore engage with stakeholders. It became evident that fewer than three of eleven companies published information on sustainability or corporate social responsibility reports, open house days, workshops, or international community activities. Most companies maintained a website for their bottled natural mineral water or communicated quality consciousness. We conclude that most companies in the Austrian mineral water industry could increase their stakeholder-engagement activities to positively respond to challenging business environments.  相似文献   
72.
Optimal Harvesting of an Age-Structured Schooling Fishery   总被引:1,自引:0,他引:1  
Biologists have criticized traditional biomass models in fishery economics for being oversimplified. Biological stock assessment models are more sophisticated with regard to biological content, but rarely account for economic objectives. This study includes a full age-structured population model for studying schooling fisheries and extends the delayed difference approach used in earlier studies. We take the total harvest as the choice variable, resulting in a simple analytical structure. The model produces optimal steady states that may be higher or lower compared to the delayed-difference formulation. The model is applied to the Baltic sprat fishery. Both ecological and harvesting cost data support specifying Baltic sprat as a schooling fishery. Given nonlinear harvesting costs, the optimal solution is a path toward a steady state with smooth annual harvest and population age structure. Sensitivity analysis shows that the optimal solution is highly dependent on the population level of the sprat’s main predator Baltic cod. A linear cost function and an interest rate below 9 % imply pulse fishing instead of smooth continuous harvesting. Given nonlinear harvesting cost, the optimal steady state yield is rather insensitive to changes in the interest rate. However, under a high cod scenario, interest rates of 10 % or higher implies that no optimal steady state exists.  相似文献   
73.
In this paper we investigate model-independent bounds for exotic options written on a risky asset using infinite-dimensional linear programming methods. Based on arguments from the theory of Monge–Kantorovich mass transport, we establish a dual version of the problem that has a natural financial interpretation in terms of semi-static hedging. In particular we prove that there is no duality gap.  相似文献   
74.
75.
In this paper we provide a method for estimating multivariate distributions defined through hierarchical Archimedean copulas. In general, the true structure of the hierarchy is unknown, but we develop a computationally efficient technique to determine it from the data. For this purpose we introduce a hierarchical estimation procedure for the parameters and provide an asymptotic analysis. We consider both parametric and nonparametric estimation of the marginal distributions. A simulation study and an empirical application show the effectiveness of the grouping procedure in the sense of structure selection.  相似文献   
76.
In this paper we derive the asymptotic distributions of the estimated weights and of estimated performance measures of the minimum value-at-risk portfolio and of the minimum conditional value-at-risk portfolio assuming that the asset returns follow a strictly stationary process. It is proved that the estimated weights as well as the estimated performance measures are asymptotically multivariate normally distributed. We also present an asymptotic test for the weights and a joint test for the characteristics of both portfolios. Moreover, the asymptotic densities of the estimated performance measures are compared with the corresponding exact densities. It is shown that the asymptotic approximation performs well even for the moderate sample size.  相似文献   
77.
Foreboding declarations about contemporary urban trends pervade early twenty‐first century academic, political and journalistic discourse. Among the most widely recited is the claim that we now live in an ‘urban age’ because, for the first time in human history, more than half the world's population today purportedly lives within cities. Across otherwise diverse discursive, ideological and locational contexts, the urban age thesis has become a form of doxic common sense around which questions regarding the contemporary global urban condition are framed. This article argues that, despite its long history and its increasingly widespread influence, the urban age thesis is a flawed basis on which to conceptualize world urbanization patterns: it is empirically untenable (a statistical artifact) and theoretically incoherent (a chaotic conception). This critique is framed against the background of postwar attempts to measure the world's urban population, the main methodological and theoretical conundrums of which remain fundamentally unresolved in early twenty‐first century urban age discourse. The article concludes by outlining a series of methodological perspectives for an alternative understanding of the contemporary global urban condition.  相似文献   
78.
Die Ermittlung der Anschaffungskosten nach IAS/U.S. GAAP erfolgt analog der Ermittlung nach HGB. In den Herstellungskosten nach IAS k?nnen unter Umst?nden Entwicklungskosten enthalten sein. Die Aktivierung von allgemeinen Verwaltungs- und Vertriebsgemeinkosten ist nicht zul?ssig. Das Niederstwertprinzip nach IAS/U.S. GAAP orientiert sich st?rker am Absatzmarkt (net realizable value). G?ngige Verbrauchsfolgeverfahren (FIFO, LIFO etc.) sind auch nach IAS/U.S. GAAP zul?ssig.  相似文献   
79.
This paper examines the impact of poverty on the size of the shadow economy using cross-country panel data for over 100 countries for the period 1991–2015. The results show that poverty has a positive and significant effect on the size of the shadow economy. Furthermore, we argue that the quality and size of governmental institutions matter in moderating the impact of poverty on the shadow economy. Considering the interactions between poverty and government quality and size, we find that poverty has the largest effect on the size of the shadow economy when government quality is the lowest and the size of the government is the largest. These results withstand a battery of robustness checks.  相似文献   
80.
Blockchain is receiving considerable attention among practitioners and academics. However, a detailed analysis investigating how the impact of blockchain is going to unfold is still missing. Our article sets out to assess the radicalness of blockchain at an early stage of its development and substantiates the analysis with evidence from the payments industry. We start by distilling five key aspects of radical innovation from extant literature. Our analysis of blockchain then focuses on the payments industry, which represents a major business field of banking and the cradle of this technology. The results of a Delphi study provide 17 statements about the current development of blockchain. The statements deliver insights into the impact of blockchain on the payments industry and reveal the radicalness of the technology. Based on these insights, we investigate how blockchain affects the five key aspects of radical innovation and develop contributions from an innovation management’s perspective.  相似文献   
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