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91.
This paper develops two novel methodologies for pricing and hedging European-style barrier option contracts under the jump to default extended constant elasticity of variance (JDCEV) model, namely: a stopping time approach based on the first passage time densities of the underlying asset price process through the barrier levels; and a static hedging portfolio approach in which the barrier option is replicated by a portfolio of plain-vanilla and binary options. In doing so, both valuation methodologies are extended to a more general set-up accommodating endogenous bankruptcy, time-dependent barriers and the commonly observed stylized facts of a positive link between default and equity volatility and of a negative link between volatility and stock price. The two proposed numerical methods are shown to be accurate, easy to implement and efficient under both the JDCEV model and the nested constant elasticity of variance model. 相似文献
92.
93.
Peter Docherty Harry Tse Ross Forman Jo McKenzie 《The Journal of economic education》2013,44(4):370-382
The authors report on the design and implementation of a pilot program to extend the principles of intensive writing outlined by W. Lee Hansen (1998), Murray S. Simpson and Shireen E. Carroll (1999) and David Carless (2006) to large macroeconomics classes. The key aspect of this program was its collaborative nature, with staff from two specialist units joining forces with two economics instructors to provide students with significant resources and direction in a short program of writing, embedded within an intermediate macroeconomics subject at the University of Technology, Sydney (UTS). The objective was to test potential strategies and to identify points of improvement for a more intensive program of writing development at the next stage of implementation. The authors review the literature on student writing and associated assessment issues, outline the central design features of the UTS program, and take a closer look at the centerpiece of a strategy for overcoming writing problems: a series of writing workshops targeted at two related assignments within the intermediate macroeconomics course. 相似文献
94.
95.
Luciana Aparecida Barbieri da Rosa Jordana Marques Kneipp Roberto Schoproni Bichueti Clandia Maffi ni Gomes João Fernando Zamberlan 《Latin American Business Review》2013,14(3-4):289-308
ABSTRACT This article analyzes what influences a firm's choice of strategy—why some firms stick to defensive strategies while others rely on offensive ones. With this in mind a survey was conducted on mineral sector companies associated with the Brazilian Mining Institute. The results show that the majority of companies use an offensive strategy and that some companies use more than one strategy at the same time. That is, they possess a corporate strategy and a sustainability strategy. 相似文献
96.
Ramiro Gonçalves José Martins Jorge Pereira Manuel Au-Yong Oliveira João José P. Ferreira 《Journal of Business Ethics》2013,113(2):363-375
The research team measured the enterprise web accessibility levels of the Forbes 250 largest enterprises using the fully automatic accessibility evaluation tool Sortsite, and presented the compliance of the evaluated websites to WCAG 1.0, WCAG 2.0 and Section 508 accessibility levels. Given the recent attention to organizational leaders having ethical duties towards their dedicated employees, we propose that ‘societal citizenship behaviour’ concerns ethical duties of organizational leaders towards society in general and in particular to those who have less means to assert their needs. In effect, we found enterprise website accessibility levels to be in need of significant improvement. An interpretation of a positive path forward to better enterprise website accessibility levels is put forth based on a focus-group interaction and using BNML—a novel Business Narrative Modelling Language. 相似文献
97.
Carlos F. Gomes Mahmoud M. Yasin João V. Lisboa Michael H. Small 《The Service Industries Journal》2013,33(12):974-998
This cross-sectional study of Portuguese service organizations seeks to determine the level of alignment of competitive methods with strategy typologies covered in the business literature. Surveyed firms were asked to indicate their level of utilization of several competitive methods. The results of factor analysis of the survey data indicate that 30 of the 33 competitive methods covered in this study represent seven underlying strategy dimensions. Further analysis revealed that there is some congruence between the derived strategy dimensions and established strategy typologies in the literature. Cluster analysis revealed that each of the responding firms could be classified into one of four hybrid or mixed strategy orientations. However, differences in strategy orientation were not statistically significant in explaining differences in the financial performance of these organizations. These findings are discussed in the light of their implications for strategy development, strategy choices and performance evaluation in the Portuguese service sector. 相似文献
98.
Cultural diversity is an inescapable reality and a concern in many businesses where it can often raise ethical questions and dilemmas. This paper aims to offer suggestions to certain problems facing managers in dealing with cultural diversity through the inspiration of Thomas Aquinas. Although he may be perceived as a voice from the distant past, we can still find in his writings helpful and original ideas and criteria. He welcomes cultural differences as a part of the perfection of the universe. His systemic approach leads one to place the problem in its proper context, and to reflect on it from the perspective of virtue ethics, with a central role for practical wisdom and giving primacy to neighborly love and natural moral law. Rather than a set of rigid standards with no consideration of diversity Aquinas focuses on the common human ground, which allows for the indispensable dialogue between different positions. When dealing with practical questions, the problem is one of finding the right balance between general principle and cultural specifics, tolerance, and dialogue, always guided by practical wisdom. In this way, Aquinas’ approach is neither rigid ethical universalism with no consideration for diversity nor moral relativism with no place for any transcultural and absolute morals. 相似文献
99.
Micro and small businesses contribute the majority of business activity in the most developed economies. They are typically embedded in local communities and therefore well placed to influence community wellbeing. While there has been considerable theoretical and empirical analysis of corporate citizenship and corporate social responsibility (CSR), the nature of micro-business community responsibility (mBCR) remains relatively under-explored. This article presents findings from an exploratory study of mBCR that examined the approaches, motivations and barriers of this phenomenon. Analysis of data from 36 semi-structured interviews with micro-business owner-operators in the Australian city of Brisbane revealed three mBCR approaches, suggesting an observable mBCR typology. Each mBCR type was at least partly driven by enlightened self-interest (ESI). In addition to a pure ESI approach, findings revealed ESI combined with philanthropic approaches and ESI combined with social entrepreneurial approaches. The combination of doing business and doing good found amongst participants in this study suggests that many micro-business owner-operators are supporters of their local communities and, therefore, driven by more than profit. This study provides a fine-grained understanding of micro-business involvement in community wellbeing through a lens of responsible business behaviour. 相似文献
100.
João Tovar Jalles 《Asian Economic Journal》2012,26(1):63-85
This paper assesses the relationship between regional trade agreements, trade integration and economic growth in 21 South and South‐East Asian countries over the period from 1980 to 2004. We aim to answer the following questions. First, how does the trade policy of a given country (and countries within the same region) affect a nation's domestic growth? Second, should developing economies in South and South‐East Asia engage in regional trade agreements (RTA) or move towards broad liberalization? Our results show that openness of either a single country or of its neighbors does not affect a nation's growth and that the impacts of RTA are unclear (if not detrimental to growth in some cases, once endogeneity is accounted for). Panel Granger‐causality tests running from openness to growth yield mixed results and some conclusions depend on the particular subsample under scrutiny. 相似文献