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981.
Denis Belomestny G. N. Milstein John Schoenmakers 《Decisions in Economics and Finance》2010,33(2):117-138
In this article, we propose several pathwise and finite difference-based methods for calculating sensitivities of Bermudan
options using regression methods and Monte Carlo simulation. These methods rely on conditional probabilistic representations
that allow, in combination with a regression approach, for efficient simultaneous computation of sensitivities at many initial
positions. Assuming that the price of a Bermudan option can be evaluated sufficiently accurate, we develop a method for constructing
deltas based on least squares. We finally propose a testing procedure for assessing the performance of the developed methods
and give a numerical illustration. 相似文献
982.
A line of research is emerging investigating the private sector impacts and dependencies on critical biodiversity and ecosystem services, and related business risks and opportunities. While the ecosystem services narrative is being forwarded globally as a key paradigm for promoting business sustainability, there is scarce knowledge of how these issues are considered at managerial level. This study thus investigates managerial views of corporate sustainability after the ecosystem services concept. We analyse interviews conducted with 20 managers from domestic and international forestry companies operating with a plantation-based business model in China. Content analysis was employed to analyse the data, with a focus on four key areas: (1) interviewee familiarity with the ecosystem services concept; (2) their views of corporate dependencies and impacts on ecosystem services; (3) related business risks and opportunities; and (4) viability of existing instruments and practices that can be employed in detecting and addressing business impacts and dependencies on ecosystem services. Through an inductive approach to the empirical findings, we refined a framework that holds operational value for developing company response strategies to ecosystem services impact/dependence assessment, ensuring that all issues are addressed comprehensively, and that related risks and opportunities are properly acknowledged. 相似文献
983.
Increasingly, national brands have cast people from marginalized groups in advertising. It is important to understand the elements that influence consumers’ responses to advertisements featuring groups who have been traditionally excluded from advertising campaigns. Although consumers may wish to buy brands that support their own views on human rights and equality, we propose that consumers in the target market may be uncomfortable if the group portrayal contradicts their beliefs about the topic, concept, or social groups in the ad. Across two studies, we show that when an ad creates this type of internal contradiction within consumers, it may elicit a more negative response than an ad portraying a more traditional model. However, we also find preliminary evidence that using models from marginalized groups can be more effective than using more traditional models—as long as such portrayals do not violate certain target consumers’ schemas. The implications of these results will be discussed. 相似文献
984.
E. N. Stebek 《Journal of Consumer Policy》2018,41(4):309-332
The 1960 Civil Code of Ethiopia and other laws have been providing a certain level of protection to consumers until the enactment of laws – in 2010 and 2014 – that expressly deal with consumer protection. This article examines consumer protection in Ethiopia with prime attention to the Trade Competition and Consumer Protection Proclamation No. 813/2013 (enacted in 2014). The social context which prompted the enactment of specific consumer laws in Ethiopia, sources that have influenced Ethiopia’s consumer law regime, rights of consumers, obligations of business persons, regulatory enforcement schemes and some features of consumer protection in digitalized services are highlighted. Moreover, the article briefly deals with the way forward regarding consumer enablement as a path to the effective implementation of consumer rights to choice, safety, information and redress. It is argued that the articulation of specific consumer laws can hardly be implemented unless consumers are adequately empowered to secure their rights and entitlements through effective redress which should include public interest litigation, class action and enhanced civil society engagement. 相似文献
985.
A substantial proportion of foodborne illness is associated with food prepared in households. The primary understanding of how foods are handled in private homes comes mostly from questionnaire based studies and direct observation. The aim of this survey was to examine consumers' perceptions and knowledge of safe food handling practices in Greece. More specifically, their attitudes, opinions and self‐reported practices were studied. Data were collected from a total of 399 consumers living in Greece by the use of a self‐administered on‐line survey. The questionnaire consisted of four positive and five negative statements according to the 5‐point Likert scale, which grouped into three constructions using principal component analysis in order to investigate food safety perceptions of consumers. Furthermore, the survey included 11 demographic questions, two close‐ended questions (type yes/no) and four questions that are related to self‐reported food‐handling practices. The results showed that the most commonly known bacterium causing food‐related illness according to respondents' knowledge is Salmonella (99.7%), followed by Escherichia coli (73.9%) and Listeria (58.4%). The overall consumers' score concerning food safety was 32.8 ± 5.37 (full score was 45). No significant differences to the mean score of food safety knowledge were found according to gender, age or the incidence of foodborne illness over the past 12 months. Knowledge and awareness of safe food handling practices was enhanced at higher education levels, while homemakers were found to have deficiencies at this level. Information obtained from consumers can be used to shape educational programs and determine where food safety educational efforts would be most effective and the needed content of the messages. 相似文献
986.
987.
Laura Beaudin Aziz N. Berdiev Allison Shwachman Kaminaga Sam Mirmirani Edinaldo Tebaldi 《The Journal of economic education》2017,48(3):167-175
The authors describe a unique approach to enhancing student learning at the introductory economics level that utilizes a multi-section, team-based competition. The competition is structured to supplement learning throughout the entire introductory course. Student teams are presented with current economic issues, trends, or events, and use economic tools and theories to comprehensively examine the topics. Students present their analyses in their own sections with one team from each section moving on to compete in an inter-section round. Students are judged on technicality, creativity, and applicability of economic concepts. The competition has the potential to advance students' creativity, collaboration, communication, and critical and analytical thinking skills, while enhancing their ability to apply foundational economic concepts to real-world settings. 相似文献
988.
989.
This work provides necessary and sufficient conditions for the dominance solvability of approval voting games. Our conditions are very simple since they depend just on the number of possible winners when voters play weakly undominated strategies. If there are at most two possible winners, then the game is dominance‐solvable and the outcome coincides with the Condorcet winner. If every candidate is a possible winner, the game is not dominance‐solvable. If none of the previous conditions holds, then the game need not be dominance‐solvable, and the outcome need not coincide with the Condorcet winner. 相似文献
990.
We exploit exogenous variation in tariffs to examine the impact of import competition on unionization and union wages in a developing country. Using a combination of nationally representative household data (National Sample Survey Organization) and nationally representative industry‐level data (Annual Survey of Industries) from India, we find that net‐import industries that experienced larger cuts in tariffs also experienced larger declines in unionization. In addition, we find that these industries also experienced larger increases in union wages. These results are consistent with the predictions of an efficient bargaining framework that we extend to endogenize the union formation decision by allowing for a fixed cost of union formation. We also conduct a back‐of‐the‐envelope calculation to show that the total wage gains to unionized workers marginally exceed the total wage losses to deunionized workers. 相似文献