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51.
We develop a structural risk‐neutral model for energy market modifying along several directions the approach introduced in Aïd et al. In particular, a scarcity function is introduced to allow important deviations of the spot price from the marginal fuel price, producing price spikes. We focus on pricing and hedging electricity derivatives. The hedging instruments are forward contracts on fuels and electricity. The presence of production capacities and electricity demand makes such a market incomplete. We follow a local risk minimization approach to price and hedge energy derivatives. Despite the richness of information included in the spot model, we obtain closed‐form formulae for futures prices and semiexplicit formulae for spread options and European options on electricity forward contracts. An analysis of the electricity price risk premium is provided showing the contribution of demand and capacity to the futures prices. We show that when far from delivery, electricity futures behave like a basket of futures on fuels. 相似文献
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Drawing together the areas of behavioral finance and positive psychology, the present research sought to investigate whether the psychological capital of investment fund managers is associated with fund performance in a context of financial instability. The theoretical propositions were presented and evaluated empirically through primary data on investment fund manager profiles and secondary data on the cumulative stock fund returns. The results indicate that funds managed by managers with greater resilience and optimism obtained a higher return than the mean profitability in a period of market instability. 相似文献
54.
The objective of this longitudinal study is to analyze the intrinsic drivers and values underlying managers’ organizational citizenship behaviors for the environment (OCBEs) from a developmental psychology perspective based on measuring the stages of consciousness that shape the meaning-making systems of individuals. At time 1, the stages of consciousness of 138 managers were qualitatively assessed using the Leader Development Profile test. At time 2, a quantitative survey measured the environmental beliefs and OCBEs of these managers. The links between stages of consciousness, environmental beliefs, and OCBEs were analyzed using hierarchical regressions. The main findings show that managers’ stages of consciousness positively influence two types of OCBEs, namely eco-initiatives and eco-helping, while environmental beliefs influence eco-helping and eco-civic engagement but do not appear to be connected with the stage of consciousness development. This paper first contributes to the literature on corporate greening by shedding more light on the aspects of behavioral and developmental psychology that underlie environmental leadership. Second, it bridges the gap between theories that have developed separately by showing the interconnectedness between the managers’ stage of consciousness and the more concrete environmental behaviors in the workplace that could have emulative effects throughout the organization. 相似文献
55.
Beratungsaufgaben nehmen heute im T?tigkeitsfeld von Pflegefachkr?ften einen immer breiteren Raum ein. Doch was umfasst pflegerische
Beratung und wie lassen sich Beratungskompetenzen erlernen? 相似文献
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This paper shows that a manufacturer may benefit from parallel trade. In addition to an intuitive condition about the effect of demand shocks, this occurs when competitive retailers must order inventories before they know the realization of demand and for products whose sale value drops at the end of the demand period. For these types of products, letting retailers trade unsold inventories generally results in larger orders placed with the manufacturer and higher manufacturer profit. The model provides a simple explanation as to why the volume of parallel trade is now very large and accepted by manufacturers for some products such as automobiles, clothes, toys, consumer electronics, musical recordings, cosmetics and perfumes. 相似文献
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This paper examines the complementarity of country-specific linkages with country-specific advantages in explaining the foreign acquisitions by Indian MNEs by testing and extending further the Eclectic Paradigm. The approach to internationalisation dominated by the Eclectic Paradigm has constantly faced challenges in gaining acceptance as a holistic framework in explaining outward foreign direct investment (OFDI). In 2006 Dunning acknowledged that the role of networks and linkages (Dunning, 2006a). In this paper we explore the view that linkages between host and home country should be included in the Eclectic Paradigm as institutional assets. Country-specific linkages add to richness and improve explanatory power of the Eclectic Paradigm. Linkage variables are shown to be an adjunct to the Eclectic Paradigm, not an alternative to it. 相似文献
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