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41.
This paper shows that under payoff and/or interest rate uncertainty the splitting up of discounted cash flows (DCFs) into period addenda not only permits to quantify the contribution of each period to the total (random) DCF, but also allows us to price it and hedge the its risk. The contribution effect was already well known, while the pricing and hedging issue is new in this context. We first notice that—through the decomposition—each cash flow process can be interpreted as a swap one. We then resort to the risk-neutral pricing and hedging technique as applied to (exotic) swaps.  相似文献   
42.
In this paper, we propose a general technique to develop first- and second-order closed-form approximation formulas for short-maturity options with random strikes. Our method is based on a change of numeraire and on Malliavin calculus techniques, which allow us to study the corresponding short-maturity implied volatility skew and to obtain simple closed-form approximation formulas depending on the derivative operator. The numerical analysis shows that these formulas are extremely accurate and improve some previous approaches for two-asset and three-asset spread options such as Kirk’s formula or the decomposition method presented in Alòs et al. [Energy Risk, 2011, 9, 52–57]. This methodology is not model-dependent, and it can be applied to the case of random interest rates and volatilities.  相似文献   
43.
The complete market approach to government debt management argues that a portfolio of non-contingent bonds at different maturities should be chosen so that fluctuations in market value offset changes in expected future deficits. However, this approach recommends huge fluctuations in positions, enormous changes in portfolios for minor changes in maturities and no presumption it is always optimal to issue long and invest short term in a wide array of model specifications. These extreme, volatile and unstable features are undesirable for two reasons. Firstly fragility of portfolios to small changes in assumptions means that it is often better to follow a balanced budget rather than issue the optimal debt portfolio under some possibly misspecified model. Secondly for even miniscule transaction costs, governments prefer a balanced budget rather than the large positions complete markets recommends. The complete market recommendations conflict with a number of features we believe are integral to bond market incompleteness, e.g. transaction costs, liquidity effects, robustness, etc. and which need to be explicitly incorporated into the portfolio problem.  相似文献   
44.
Payne E 《Medical economics》2002,79(9):101-2, 107
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45.
Brand managers are increasingly confronted with the option of licensing their brands when pursuing brand extensions. Such decisions are typically based on evaluation of the risks associated with such a contractual form, and with the nature of the asset at stake, i.e., the brand. Drawing on transaction cost economics and the brand extension literature, the authors investigate how managers balance the advantages of rapidly accessing new product categories through licensing with the risk of negative reciprocal effects and licensees' opportunistic behavior. Our results suggests that firms tend to be strategically conservative when examining how to extend their brands, as managers see the risk of negative effects on the parent brand as outweighing the advantages associated with licensing.  相似文献   
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This article examines multinational banks’ (MNBs) approaches to corporate social responsibility (CSR) in developing countries’ subsidiaries, particularly in Latin America. Building on in-depth case studies of two MNBs that are based in Europe and market leaders in Latin America, we analyze their CSR motivations and outcomes in host countries. We examine institutional environments by applying the national business system framework, and we suggest missing categories in its financial and educational dimensions. We theorize how institutional necessity determines MNBs' CSR in developing countries. Finally, we examine the CSR outcomes in Latin America, where banks’ responsible conduct has led to major improvements in educational levels and financial inclusion. These improvements alleviate poverty and enhance both country's social wellbeing and MNBs’ legitimacy, leading to mutual prosperity.  相似文献   
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This study explores destination stakeholders' perceptions of volunteer tourism (VT) using equity theory. In this paper, 26 semi‐structured interviews were conducted to understand individuals' needs, motivations, expectations and their assessments of inputs and outcomes. Equity theory sheds light on the micro‐level of interaction between residents and volunteers and demonstrates why and how residents of Cusco (Peru) with an active role in VT develop certain perceptions in direct encounters with volunteer tourists. The data reveal how perceptions differ according to the respondents' social roles within VT. Heterogeneity, dynamism and a fluctuation between materialities and affection are discussed as important outcomes of these interactions. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   
50.
This study discusses stereotypes of entrepreneurship by looking at the overlapping areas of entrepreneurship, self-employment and professions. Professions are part of the category of self-employment and the study presents empirical findings drawn from a unique empirical dataset from Finland: a survey (N?=?733) including freelance journalists, translators, interpreters and artists at the blurred boundaries between waged work and entrepreneurship. Findings reveal that the professions are clearly different and the manifestations of entrepreneurship vary, reflecting the work and the labor market situation within the profession. Life and work situations of liberal professions cannot be interpreted in simple black-and-white schemes of winners and losers. Instead, many different socioeconomic situations can be found ‘in between,’ which are driven by different social logics. For entrepreneurship research, the study opens up new avenues by taking us beyond the push-pull dichotomy, which over-simplifies the decision to enter self-employment. The term entrepreneurship is often used in an undifferentiated way, and it easily generates myths and stereotypes which are challenged by the study. A narrower and more realistic view shows that there are diverse agents under the flag of entrepreneurship, who are usually not regarded as core entrepreneurs although they exist in everyday life.  相似文献   
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