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21.
Equity market neutral hedge funds and the stock market: an application of score-driven copula models
Astrid Ayala 《Applied economics》2018,50(37):4005-4023
In this article, we study the time-varying market neutrality of equity market neutral hedge funds. We use data from the Hedge Fund Research? Equity Market Neutral Index (HFRX EH), which represents the performance of a portfolio of individual equity market neutral hedge funds. For each day, we measure different levels of association of the Standard and Poor’s 500 (S&;P 500) index and the HFRX EH. We use non-linear dynamic conditional score models of location, scale and copula that, to the best of our knowledge, have not yet been applied in the body of literature on hedge funds. We study whether the neutrality of the HFRX EH that is evidenced in the body of literature for the period of April 1993–April 2003 also holds for the following decade, for the period of May 2003–December 2016. We estimate different average levels of association for the pre-, during- and post-periods of the US financial crisis of 2008. We find that the association of the S&;P 500 and the HFRX EH, on average, is significantly positive for the pre- and post-periods of the financial crisis, and it is significantly negative for the period during the financial crisis. 相似文献
22.
This paper investigates whether climate negotiators have preferences for equity and whether these preferences may help to explain different positions in international climate policy. For this purpose we conducted an online experiment with individuals who had been involved in international climate policy. The experiment consisted of two simple non-strategic games suited to measure individual inequality aversion as captured by the equity preference model of Fehr and Schmidt (Quarterly Journal of Economics 114:817–868, 1999). We find that our participants show an aversion to advantageous inequality to a considerable extent while the aversion to disadvantageous inequality is moderate. Regarding the geographical variety in our sample, we cannot confirm significant differences in the degree of inequality aversion between different regions in the world. Our conclusion is that regional differences in addressing climate change are driven more by national interests than by different equity concerns. 相似文献
23.
Ghislaine A. van Mastrigt Silvia M. Evers Marco Heerings Leo H. Visser Rob P. Ruimschotel Astrid Hussaarts 《Journal of medical economics》2013,16(10):967-980
AbstractAims: This trial-based economic evaluation (EE) assesses from a societal perspective the cost-effectiveness of an intensive 3-day cognitive theory-based intervention (CDT), compared to care-as-usual, in patients with relapsing remitting multiple sclerosis (RRMS) and low disability (Expanded Disability Status Scale [EDDS] score < 4.0).Materials and methods: The trial of the EE was registered in the Dutch Trial Register: Trial NL5158 (NTR5298). The incremental cost-effectiveness ratio (ICER) was expressed in cost on the Control sub-scale of the Multiple Sclerosis Self-Efficacy Scale (MSSES) and the incremental cost-utility ratio (ICUR) in the cost per Quality Adjusted Life Years (QALY) using the EQ-5D-5L. Bootstrap, sensitivity, and sub-group analyses were performed to determine the robustness of the findings.Results: The two groups of 79 patients were similar in baseline characteristics. The base case ICER is situated in the northeast quadrant (€72 (40.74/€2,948)) due to a higher MSSES Control score and higher societal costs in the CDT group. The ICUR is situated in the northwest (inferior) quadrant due to losses in QALY and higher societal costs for the CDT group (?0.02/€2,948). Overall, bootstrap, sensitivity, and sub-group analyses confirm the base case findings. However, when the SF-6D is used as a study outcome, there is a high probability that the ICUR is situated in the northeast quadrant.Limitations: The relative short follow-up time (6?months) and the unexpected increase in MSSES Control in the control group.Conclusions: When using the EQ-5D-5L to calculate a QALY, CDT is not a cost-effective alternative in comparison to care as usual. However, when using self-efficacy or SF-6D as outcomes, there is a probability that CDT is cost-effective. Based on the current results, CDT for patients with RRMS clearly show its potential. However, an extended follow-up for the economic evaluation is warranted before a final decision on implementation can be made. 相似文献
24.
Stephen A. Coetzee Karin Leith Astrid Schmulian 《Accounting Education: An International Journal》2013,22(5):465-483
ABSTRACTThe use of social media platforms to facilitate teaching and learning requires resources (hardware and Internet access) to enable active student participation. Limited access to these resources may impair students’ learning and, should the students consequently fail to graduate, tacitly contribute to their social exclusion. The results of a survey amongst students at a South African university, identified statistically significant differences relating to hardware and Internet access between more affluent students, and lower income students. Using social media may, therefore, be countering the objective of widening the admissions to universities in South Africa as an attempt to address past exclusionary practices. This study raises awareness with instructors and administrators globally, about the risk of tacit social exclusion, as a result of the tools selected to facilitate learning. 相似文献
25.
Gender wage gap studies: consistency and decomposition 总被引:1,自引:0,他引:1
Astrid Kunze 《Empirical Economics》2008,35(1):63-76
This paper reviews the empirical literature on the gender wage gap, with particular attention given to the identification
of the key parameters in human capital wage regression models. This is of great importance in the literature for two main
reasons. First, the main explanatory variables in the wage model, i.e., measures of work experience and time-out-of-work,
are endogenous. As a result, applying traditional estimators may lead to inconsistent parameter estimates. Second, empirical
evidence on the gender wage gap hinges on estimates of the parameters of interest. Accordingly, their economic meaning may
be limited by restrictive assumptions included in wage models. This challenges both researchers and policymakers who require
precise measures of the gender wage gap in order to create and enforce efficient equality policies.
This paper is a substantially revised version of the first chapter of my thesis. I am grateful to Christian Dustmann and Wendy
Carlin for their great support and comments. I also thank Bernd Fitzenberger, colleagues at the Norwegian School of Economics
and Business Administration and IZA, and three anonymous referees for their helpful comments and suggestions. 相似文献
26.
Laura E.M. Traavik Astrid M. Richardsen 《International Journal of Human Resource Management》2013,24(15):2798-2812
This study investigates the career success of international expatriate women in Norway. Norwegian and international women were compared on both objective and subjective career success. Participants were 125 Norwegian women and 168 international expatriate women who answered a 58 item questionnaire. Although Norwegian women achieved higher career success than the expatriate group, these effects disappeared for objective career success when expatriate women had a high level of education, high English language competency and motivation. Motivation, self focused conflict resolution and language competency were positively associated with subjective career success. Results suggest that although being foreign can be a disadvantage in Norway, expatriate women can overcome this liability through investment in education, language and motivation. Implications for international expatriate women are discussed. 相似文献
27.
Energy productivity is crucial for sustainable development. We use cointegration analyses to investigate the effect of electricity on energy productivity in Swedish industry from 1930 to 1990. Electricity augmented energy productivity in those industrial branches that used electricity for multiple purposes. This productivity effect goes beyond “book-keeping effects,” i. e. it is not only the result of electricity being produced in one sector (taking the energy transformation losses) and consumed in another (receiving the benefits). 相似文献
28.
Susanna Molander Ingeborg Astrid Kleppe Jacob Ostberg 《Consumption Markets & Culture》2019,22(4):430-453
ABSTRACTIn this paper, we explore how visual expressions of culture offer new discursive territory within which consumer cultural ideals can be negotiated on a global scale. Through a critical visual analysis of the revelatory case Swedish Dads, we find hero shots depicting involved fathers where children’s needs and the hermetic confines of the home take center stage, as opposed to the traditional fatherhood ideals portrayed in western contemporary advertising, media, and popular culture. We demonstrate how the Swedish state’s gender ideology was encoded into a communicative event in the form of hero shots and subsequently dispersed by visual consumers as well as political and commercial stakeholders pushing this particular agenda and/or capitalizing on its tendencies. This in such a way that the event conquered new discursive territory fostering new types of consumer cultural negotiations on fatherhood ideals also in other cultural settings. 相似文献
29.
Much effort has been dedicated to fighting wildlife crime with modest results. This paper focuses on marine wildlife crime, which suffers from a certain level of neglect due to terrestrial bias (a predominant focus on land animals). Despite legislative and enforcement efforts, there has been little integration of marketing techniques to curtail marine wildlife crime. For these reasons, we set out to study current issues surrounding marine wildlife crime by conducting interviews with three experts in areas of marine education, research, and legislation. The interviews provide an overview of the threats to marine wildlife, aid in the development of a classification of marine wildlife crime, and provide strategies as to what marketing actions may be useful to reduce it. 相似文献
30.