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11.
Dylan E. Williams Emilio Cesio 《中国广告》2008,(9):34-35
提到这个品牌的时候,我第一个想到的就是"与众不同"。自从Apple建立以来,这个品牌一直致力于革新,以求拥有一个清晰的训喻。它并不只是要生产最好的软件(与Windows竞争)。而是要在硬件上进行不断的 相似文献
12.
Massimo Costabile Arturo Leccadito Ivar Massabó Emilio Russo 《Review of Quantitative Finance and Accounting》2014,42(4):667-690
We present a binomial approach for pricing contingent claims when the parameters governing the underlying asset process follow a regime-switching model. In each regime, the asset dynamics is discretized by a Cox–Ross–Rubinstein lattice derived by a simple transformation of the parameters characterizing the highest volatility tree, which allows a simultaneous representation of the asset value in all the regimes. Derivative prices are computed by forming expectations of their payoffs over the lattice branches. Quadratic interpolation is invoked in case of regime changes, and the switching among regimes is captured through a transition probability matrix. An econometric analysis is provided to pick reasonable volatility values for option pricing, for which we show some comparisons with the existing models to assess the goodness of the proposed approach. 相似文献
13.
Emilio Barone Giovanni Barone-Adesi & Antonio Castagna 《European Financial Management》1998,4(2):231-282
The pricing of bonds and bond options with default risk is analysed in the general equilibrium model of Cox, Ingersoll, and Ross (1985). This model is extended by means of an additional parameter in order to deal with financial and credit risk simultaneously. The estimation of such a parameter, which can be considered as the market equivalent of an agencies' bond rating, allows to extract from current quotes the market perceptions of firm's credit risk. The general pricing model for defaultable zero-coupon bond is first derived in a simple discrete-time setting and then in continuous-time. The availability of an integrated model allows for the pricing of default-free options written on defaultable bonds and of vulnerable options written either on default-free bonds or defaultable bonds. A comparison between our results and those given by Jarrow and Turnbull (1995) is also presented. 相似文献
14.
Massimo Battaglia Lara Bianchi Marco Frey Emilio Passetti 《Business ethics (Oxford, England)》2015,24(1):52-72
Cooperatives are facing the challenge to be competitive in the market, without losing their traditional values of mutuality and democracy. To do that, they need to re‐construct open and participative dialogue with their employees and members based on more democratic forms of communication and engagement. From this point of view, the measurement and communication of sustainability aspects may allow a dialogue to be mobilized with shareholders and stakeholders without losing the attention on competitive factors. Based on these premises, the article analyses the experience of a 5‐year action research project (from 2006 to mid‐2011), carried out within Unicoop Tirreno, an Italian consumers' cooperative, and aimed to implement different tools for sustainability accounting and to embrace a more open dialogue with stakeholders, in particular with employees and members. In this process of change, the tools implemented for sustainability accounting played a key role in supporting the cooperative to reinterpret its own values and in stimulating a new and participative management approach. The results indicate a virtuous circle between the management and measurement of cooperative principles and the management and measurement of sustainability issues. 相似文献
15.
Massimo Costabile PhD Ivar Massabò Emilio Russo PhD 《North American actuarial journal : NAAJ》2013,17(4):517-534
Abstract We consider the problem of computing the fair value of equity-linked policies with an interestrate guarantee when the insurer is subject to credit risk. The framework is developed based on modern financial theory using the no-arbitrage principle. In this context, an equity-linked policy is considered as a vulnerable contingent claim that expires before maturity if the firm asset value reaches a prespecified default threshold depending on the firm’s liabilities. We derive a closedform formula in a continuous-time environment to compute the fair value of the contract. We also develop a discrete-time model that allows us to address fair evaluation when the policy embeds a surrender option. 相似文献
16.
A portfolio approach in the e-purchasing of materials 总被引:2,自引:1,他引:1
By improving the procurement process purchasing departments are becoming more and more strategic in order to increase overall companies performances. In the last years, web-based tools have effectively supported this trend by offering to buyers useful tools in order to help their activities. Purchasing departments have now to choose the right tool for the right purchase in the right supply market; for this reason it is important for them to adopt a portfolio approach exploiting all the different solutions offered by the technology according to the different situations.In this perspective, this paper identifies four most common purchasing approaches adopted by companies, which drivers are considered to choose among these, and which level of performances companies achieve through the identified approaches.Empirical evidence is based on a survey research involving 162 US companies. 相似文献
17.
The aim of this paper is to analyze the impact that environment‐friendly and management‐quality improvements have on the firm's competitiveness (profitability and market share) within the fresh fruit and vegetable sector. Andalusian farming/marketing entities (producer organizations) serve as a reference for our analysis. For these entities, there are subsidy programs aimed at developing quality and environmental practices. Such programs are a top priority for the CAP's Common Market Organizations. An analysis of a simultaneous equations model is suggested, considering the distinguishing effect of quality‐environmental investment and the possible endogeneity problems among the variables. The results show a positive correlation between the application of the aforementioned activities and the competitiveness of the horticultural firms. L'objectif de ce travail c'est d'analyser l'impact des pratiques de production favorables à l'environnement ainsi que de la gestion de la qualité (rentabilité et part du marché) par rapport aux secteurs des fruits et légumes frais. Les organismes de commercialisation agricole d'Andalousie (organ‐ismes de production) représentent un point de référence pour notre analyse. Ces organismes bénéficient de programs d'aide au développement de la qualité et des pratiques favorables à l'environnement. Ces pro‐grammes constituent une priorité majeure pour les Organisations du Marché Commun dans le cadre des Politiques Agricoles Communes (PAC). Nous proposons ici une analyse d'un modèle aux équations simul‐tanées considérant l'effet caractéristique d'un investissement de qualité de l'environnement ainsi que les possibles problèmes à caractère endogène parmi les variables. Le résultat met en évidence une corrélation positive entre l'application des activités précédemment citées et la compétitivité des entreprises horticoles. 相似文献
18.
José María Sarabia Enrique Castillo Emilio Gómez-Déniz Francisco J. Vázquez-Polo 《The Journal of risk and insurance》2005,72(3):479-495
In this article, a new methodology for obtaining a premium based on a broad class of conjugate prior distributions, assuming lognormal claims, is presented. The new class of prior distributions arise in a natural way, using the conditional specification technique introduced by Arnold, Castillo, and Sarabia (1998, 1999) . The new family of prior distributions is very flexible and contains, as particular cases, many other distributions proposed in the literature. Together with its flexibility, the main advantage of this distribution is that, due to its dependence on a large number of hyperparameters, it allows incorporating a wide amount of prior information. Several methods for hyperparameter elicitation are proposed. Finally, some examples with real and simulated data are given. 相似文献
19.
The Price-Volatility Feedback Rate: An Implementable Mathematical Indicator of Market Stability 总被引:1,自引:0,他引:1
Emilio BarucciPaul MalliavinMaria Elvira MancinoRoberto RenòAnton Thalmaier 《Mathematical Finance》2003,13(1):17-35
Geometric analysis of iterated cross-volatilities of asset prices is adopted to assess the stability of the (risk-free) measure under infinitesimal perturbations. Perturbations of asset prices evolve through time according to an ordinary linear differential equation (hedged transfer). The decay (feedback) rate is explicitly computed through a Fourier series method implemented on high frequency time series. 相似文献
20.
Emilio M. Francisco Jock R. Anderson 《The Australian journal of agricultural and resource economics》1972,16(2):82-93
Twenty-one pastoralists in the West Darling region of New South Wales were interviewed to gain an understanding of the attitudes of managers in this high-risk pastoral area to uncertain prospects. It was found that pastoralists had no difficulty in specifying subjective probabilities but in modifying probabilistic information they were conservative relative to the 'correct' revision implied by Bayes' Theorem. All the surveyed pastoralists were non-indifferent to risk, as evidenced by their non-linear utility functions for gains and losses. 相似文献