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21.
Greg Taylor PhD FIA FIAA FIMA CMath CSci 《North American actuarial journal : NAAJ》2013,17(3):242-262
Abstract This paper constructs and studies a simple but realistic model of an insurance market. The model has a minimalist construction in the sense that the number of parameters defining it is strictly limited and the elimination of any one of them would destroy its realism. There are 11 essential parameters. Each of the parameters has a physical interpretation. Some determine competitive effects within the market, some barriers to entry, and so on. The effect of each on various aspects of the market is examined in the presence of simulated loss experience. The aspects of the market considered include stability of premium rates, profitability, and market concentration. Some of the parameters are capable of use as regulatory controls. Two parameters, in addition to the original 11, are explicit price controls. Despite its simplicity, the model displays considerably complex behavior. Some results are intuitive, but some are not. For this reason, regulatory controls need to be applied with great caution lest they induce perverse effects, possibly even the reverse of those intended. The effect of the parameters on market behavior is first studied in the absence of catastrophic events from the loss experience. Subsequently, the effect of a single such event is studied. 相似文献
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Robin Naidoo Greg Stuart-Hill L. Chris Weaver Jo Tagg Anna Davis Andee Davidson 《Environmental and Resource Economics》2011,48(2):321-335
There exist few quantitative assessments of the relationship between biodiversity per se and economic benefits at scales that are relevant for conservation. Similarly, the merits of Community-Based Natural Resource
Management programs for both wildlife and people are contested. Here, we harness two databases, on wildlife surveys and financial
benefits, to address these issues for communal conservancies in northwest Namibia. We use ordination methods to characterize
the diversity and stability of large wildlife assemblages on conservancies, and demonstrate that diversity (but not stability)
is an important explanator of conservancy financial benefits. Our results indicate that for this area of Namibia, biodiversity,
as represented by large wildlife assemblages, has an important, positive effect on the tangible financial benefits that people
derive from conservation programs. 相似文献
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Sefa Hayibor Bradley R. Agle Greg J. Sears Jeffrey A. Sonnenfeld Andrew Ward 《Journal of Business Ethics》2011,102(2):237-254
Although charismatic leadership theorists have long argued that leader–follower value congruence plays a central role in the
development of charismatic relationships, few studies have tested this proposition. Using data from two studies involving
a total of 329 CEOs and 1807 members of their top management teams, we tested the hypothesis that value congruence between
leaders and their followers is empirically linked to follower perceptions of the charisma of their leader. Consistent with
a relational perspective on charismatic leadership, strong support was found for the hypothesis that perceived value congruence between leaders (CEOs) and their followers (members of their top management teams) is positively related
to follower perceptions of the degree of charisma possessed by the leader. Conversely, only limited support was found for
the hypothesis that actual value congruence is linked to perceptions of charismatic leadership. Implications of these findings for research and practice
are discussed. 相似文献
25.
This paper examines the wealth maximisation and preservation effects of including commercial real estate in retirement-phase portfolio management. Prior research addresses the role of real estate during the wealth-accumulation phase of the investor lifecycle; however, little is known about the contribution of real estate during the invest-and-spend, or decumulation, phase. To address this issue, we estimate short-fall risk based on the widely known 4% Rule. We use pricing data for multiple asset classes and simulation techniques, combined with a robust correlation structure, to examine: short-fall risk sensitivity to alternative spending rules; the impact of public vs. private real estate allocations; wealth preservation as an investment objective; and the effect of real estate on upside, or wealth maximisation, potential. We find short-fall risk in a decumulation portfolio decreases with substantial allocations to real estate. This result holds for a portfolio including either public or private real estate. Additionally, and under most conditions, the best performing decumulation-phase portfolios include a real estate allocation with both public and private real estate exposure. These results have significant implications for investors, whether they be retirees, plan administrators or endowments, as well as financial economists studying the lifecycle of investment decisions. 相似文献
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Greg Filbeck Raymond Gorman Xin Zhao 《Review of Quantitative Finance and Accounting》2013,41(4):695-722
In this paper, we explore the cumulative and interactive effects from being listed on one or more of four popular annual surveys (Fortune’s “Most Admired Companies” and “100 Best Companies to Work For,” Business Ethics “Best Corporate Citizens,” and Working Mother’s “100 Best Companies for Working Mothers.”) We find portfolios constructed of firms selected across these surveys add value to a portfolio, initially and over longer-holding periods, but the overall results are driven by the performance of those firms selected from the Most Admired Companies and Best Corporate Citizens rankings. We also discover that being listed in two or three different surveys on a yearly basis produces incremental value. 相似文献
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Greg J. Bamber Shaun Ryan Nick Wailes 《International Journal of Human Resource Management》2013,24(8):1481-1516
This paper provides statistical information on internationalization, human resources and labour market outcomes in ten important developed market economies (DMEs). Such data are useful for practitioners and academics who are interested in international HRM. The article's aim is to provide easily accessible statistical tables of selected characteristics, which can be used to draw initial comparisons between countries and to test competing accounts of the impact of globalization on national patterns of employment relations. It includes standard sources so readers can elaborate and update these data. 相似文献
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