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排序方式: 共有161条查询结果,搜索用时 18 毫秒
1.
We study the exploitation of a common groundwater resource, first as a static and then as a differential game, in order to take into account the strategic and dynamic interactions among the users of the resource. We suppose that firms can form coalitions or can decide not to cooperate. The non-cooperation regime is characterized by pumping that lead to depletion of the aquifer; the cooperation preserves the resource. Open-loop and feedback equilibria have been computed and compared in order to characterize the existence of cooperators and defectors in water resources management. 相似文献
2.
Vlad Bally Lucia Caramellino Antonino Zanette 《Decisions in Economics and Finance》2006,29(2):121-137
Abstract
The problem of numerically pricing credit default index swaptions on a large number of names is considered. We place ourselves
in a stochastic intensity framework, where Ornstein-Uhlenbeck-type correlated processes are used to model both firms’ distance
to default and a macroeconomic state variable. Here the default of the firms’ follows the reduced-form approach and the (random)
intensity of the default depends on the behavior of the diffusion processes. We propose here a numerical method based on both
a Monte Carlo and a deterministic approach for solving PDEs by finite differences. Numerical tests demonstrate the efficiency
and the robustness of the proposed procedure. 相似文献
3.
Lucia Barbosa de Oliveira Flavia Cavazotte Rodrigo Alan Dunzer 《International Journal of Human Resource Management》2019,30(10):1583-1603
In the organizational career management literature, scholars have focused on career management policies, with little attention given to practices that can vary within organizations. And despite its recognized importance, research on the role of leaders in the career management process is also scant. In this study, we investigate the effects of career management practices (OCPs) and leadership career support (LCS) on employee attitudes. Grounded on coping theory, we propose that career support received from line managers can be particularly consequential when OCPs are lacking. We analyze the moderating effects of LCS on the relationship between OCPs and both job satisfaction and turnover intention in a sample of employees from a large Brazilian organization, applying multiple regression analyses. Results showed that OCPs and LCS are positively related to job satisfaction and that OCPs are negatively related to turnover intention. In addition, we confirmed that LCS moderates the relationship between OCPs and both job satisfaction and turnover intention. Finally, we observed that the relationship between OCPs and turnover intention is mediated by job satisfaction. Theoretical and practical implications are discussed. 相似文献
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Standard macroeconomic theory predicts rapid responses of asset prices to monetary policy shocks. Small‐scale vector autoregressions (VARs), however, often find sluggish and insignificant impact effects. Using the same high‐frequency instrument to identify monetary policy shocks, we show that a large‐scale dynamic factor model finds overall stronger and quicker asset price reactions compared to a benchmark VAR, both on euro area and US data. Our results suggest that incorporating a sufficiently large information set is crucial to estimate monetary policy effects. 相似文献
6.
Greenwashing Revisited: In Search of a Typology and Accusation‐Based Definition Incorporating Legitimacy Strategies
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Is greenwashing a concept describing companies using misleading communication or is it co‐constructed in the eye of the beholder? By discussing the literature, we find that existing definitions of greenwashing overemphasize the strategic intention to mislead and do not incorporate unjust allegations. Then, by combining signaling theory with legitimacy theory, we frame the communication process of the greenwashing accusation and the emergence of a negative narrative caused by the accusation and its effect on legitimacy. Hence, in this paper we argue that greenwashing epistemologically is constituted in the eye of the beholder , depending on an external accusation. Following this view, the greenwashing accusation is understood as a distortion factor altering the signal reliability of green messages. Based on our conceptual analysis, we provide a conceptual framework introducing a new typology of case‐based greenwashing (greenwashing , false greenwashing , potential greenwashing and no greenwashing ) and the effects of these types on corporate legitimacy. Finally, we propose a revised definition of greenwashing as co‐creation of an external accusation toward an organization with regard to presenting a misleading green message. Copyright © 2015 John Wiley & Sons, Ltd and ERP Environment 相似文献
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This paper examines empirically the relationship between electricity spot and futures prices, by analysing a decade of data for a set of short term-to-maturity futures contracts traded in the Nordic Power Exchange. It is found that, on average, there are significant positive risk premiums in short-term electricity futures prices. The significance and size of the premiums, however, varies seasonally over the year; whereas it is greatest during winter, it is zero in summer. It is also found that time-varying risk premiums are significantly related to unexpectedly low reservoir levels. Furthermore, before the unprecedented supply-shock that hit the market around the end of year 2002, the risk premiums were related to the variance and the skewness of future spot prices. 相似文献
9.
Tarcísio Lima Filho Suzana Maria Della Lucia Rondinelli Moulin Lima 《International Journal of Consumer Studies》2017,41(5):518-525
This study aimed to examine the neophobia, knowledge, thoughts, and opinions related to food irradiation among consumers living in a small city in Brazil through the application of a behavioral and sociodemographic questionnaire. It was found that the 271 respondents had little knowledge about the process of food irradiation and had low intent to purchase irradiated food; several consumers associated irradiated food with radioactivity and cancer. Individuals with better knowledge about irradiation and those who are young, single, did not live with children, and had higher levels of education and higher monthly family incomes were more likely to buy irradiated foods than others. These results describe the profile of potential consumers of irradiated foods and the knowledge, thoughts and opinions of the residents of a small city relative to food irradiation. This data could assist industries that irradiate foods to adopt strategies that ensure greater acceptance of their products. 相似文献
10.
Innovation is one of the major determinants of competitive success. As a result, there is demand for information on the innovation activities of firms among investors, other stakeholders and the public. Using content analysis, this paper examines the innovation capital disclosure (INCD) characteristics (i.e. disclosure quantity and quality) in the intellectual capital statements (ICS) of 51 European for-profit firms. Additionally, the relationships between INCD characteristics and industry, firm size, region of registered office and the disclosure guidelines adopted are analysed. Our content analysis detects an average of 29.16 items on innovation capital (INC) per ICS. These are mainly qualitative, non-financial and historically orientated. Furthermore, as expected, industry, firm size, region and disclosure guidelines drive the quantity of disclosure. Prior empirical studies of voluntary disclosure in documents other than ICS have also suggested a relationship between firm size and disclosure quality. Interestingly, our results for INCD in ICS do not support this relationship. This provides tentative evidence for a similar qualitative level of innovation capital disclosure across firm size. Furthermore, our findings show mostly homogeneous disclosure patterns across the regions in Europe, suggesting that multinational efforts towards fostering INCD has made the ICS phenomenon more a European than a local phenomenon. 相似文献