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排序方式: 共有93条查询结果,搜索用时 718 毫秒
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Edward L. Robbins F.S.A. Samuel H. Cox F.S.A. Ph.D. Richard D. Phillips Ph.D. 《North American actuarial journal : NAAJ》2013,17(2):85-98
Abstract In this paper we consider the Sparre Andersen insurance risk model. Three cases are discussed: the ordinary renewal risk process, stationary renewal risk process, and s-delayed renewal risk process. In the first part of the paper we study the joint distribution of surplus immediately before and at ruin under the renewal insurance risk model. By constructing an exponential martingale, we obtain Lundberg-type upper bounds for the joint distribution. Consequently we obtain bounds for the distribution of the deficit at ruin and ruin probability. In the second part of the paper, we consider the special case of phase-type claims and rederive the closed-form expression for the distribution of the severity of ruin, obtained by Drekic et al. (2003, 2004). Finally, we present some numerical results to illustrate the tightness of the bounds obtained in this paper. 相似文献
23.
Alexander P. Robbins 《Review of Quantitative Finance and Accounting》2010,34(2):199-224
This paper seeks to empirically examine the market effects of a loophole in insider trading law that allows insiders to cancel
supposedly irrevocable pre-planned trades under SEC Rule 10b5-1 based on inside information. Based on an econometric analysis
of a dataset of 81 NASDAQ-listed companies from 2004 to 2006, the paper concludes that: (1) the trading public attaches primary
significance to the announcement of a 10b5-1 plan rather than the specified start date of that plan; (2) insiders make above-market
profits using 10b5-1 plans but do not appear to arbitrarily or continually create such plans; (3) 10b5-1 plans have a significant
negative effect on the liquidity of a firm’s shares, and therefore the firm’s cost of capital; and (4) insiders do not appear
to increase the volatility of their own firms’ shares in order to profit by trading on the basis of material nonpublic information
under the protection of the 10b5-1 safe harbor. 相似文献
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Geraldine Healy 《Industrial Relations Journal》1999,30(3):212-228
This article explores how a highly unionised and professional occupational group, school teachers, want their trade union to be involved in their career development. By taking an apparently individualistic concept and considering it from a collective perspective, the article provides insights into a neglected aspect of career development. 相似文献
26.
This study combines a widely held view of how earnings are related to education and job tenure (The Mincer model1) with the notion that earnings are associated with the quality of an employer–employee job match. The quality of an individual's occupational choice is measured using job congruence, a commonly-used construct in the psychometric literature. Better-matched individuals should be more productive and, as a result, have higher earnings. Previous studies were unable to address the importance of job preferences to earnings because available data do not include both job congruence and individual earnings. The Alumni Outcomes Survey, recently produced by ACT Inc., is among the first data sets to include both variables. We use these data to estimate the importance of job congruence on earnings after controlling both for job tenure and for academic achievement, measured by an individual's ACT score. Results indicate that job congruence is positively correlated with earnings, and has effects on earnings that are of almost equal magnitude with years of education. 相似文献
27.
Greg Allenby Geraldine Fennell Joel Huber Thomas Eagle Tim Gilbride Dan Horsky Jaehwan Kim Peter Lenk Rich Johnson Elie Ofek Bryan Orme Thomas Otter Joan Walker 《Marketing Letters》2005,16(3-4):197-208
The emergence of Bayesian methodology has facilitated respondent-level conjoint models, and deriving utilities from choice
experiments has become very popular among those modeling product line decisions or new product introductions. This review
begins with a paradox of why experimental choices should mirror market behavior despite clear differences in content, structure
and motivation. It then addresses ways to design the choice tasks so that they are more likely to reflect market choices.
Finally, it examines ways to model the results of the choice experiments to better mirror both underlying decision processes
and potential market choices.
Co-chairs. Author order is alphabetical. 相似文献
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Robbins D. Keith Pantuosco Louis J. Parker Darrell F. Fuller Barbara K. 《Small Business Economics》2000,15(4):293-302
Small Business Economics - Small business proponents regularly couple their arguments for favorable government policies and reduced tax and regulatory burdens, to the presumed benefits of increased... 相似文献
30.
The paper draws on a qualitative case study of workplace industrial relations in an inner–city secondary school identified as 'failing' and subsequently closed. It considers the way unionized teachers and their representatives interpret, influence and resist the impact of centralized managerial and educational change. The local implementation of such change leads to an engagement with the debates on union renewal. In particular, the paper explores the dynamic interrelationship between political and trade union activism and the tension between workplace relations and formal union organization. 相似文献