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1.
Risks and Portfolio Decisions Involving Hedge Funds 总被引:6,自引:0,他引:6
This article characterizes the systematic risk exposures ofhedge funds using buy-and-hold and option-based strategies.Our results show that a large number of equity-oriented hedgefund strategies exhibit payoffs resembling a short positionin a put option on the market index and therefore bear significantleft-tail risk, risk that is ignored by the commonly used mean-varianceframework. Using a mean-conditional value-at-risk framework,we demonstrate the extent to which the mean-variance frameworkunderestimates the tail risk. Finally, working with the systematicrisk exposures of hedge funds, we show that their recent performanceappears significantly better than their long-run performance. 相似文献
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Sumit K. Majumdar 《Technological Forecasting and Social Change》1997,56(1):61-75
This article investigates the impact of digital technology diffusion on the productivity of firms making up the local operating sector of the U.S. telecommunications industry for the years 1991 to 1993. Diffusion of digital technology is measured as the extent of line digitalization that has taken place, with digitalization expected to enable firms to reap significant operating efficiencies. While the diffusion of this particular technology in the local operating company sector has been relatively low, it is found that, after controlling for the effects of a number of other covariates also likely to affect firm-level performance, the spread of digital technology within the U.S. local telephone network plays a significant and positive role in impacting productive efficiency of the firms making up the network. The investments that have been made in energizing the U.S. information superhighway, via the digitalization of telephone lines, are justified in productive efficiency terms. The article contributes to empirical literature in the technical change area which assesses the firm-level productive efficiency consequences of technology diffusion. 相似文献
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This paper reports the results of the quantitative analysis of international experience of the relationship between infrastructure investment in the deployment of capacity that can carry large volumes of voice and data traffic and regulatory policy changes in the telecommunications sectors. It looks at the relationship between infrastructure investment for these infrastructure assets and the access pricing régimes for local exchange carriers in the United States and Europe. It then looks at the relationship between various aspects of regulatory and institutional policy changes in Europe and how they affect access prices.The paper finds that a lower access price promotes greater deployment of digital technology among US incumbent local exchange carriers (ILECs). Based on this finding, it suggests that it is in the ILECs interest to have access to their networks encouraged.The European data for interconnection are recent and far reaching conclusions are not feasible, but the findings, however, suggest that competition has worked by facilitating new entry through decreasing interconnection prices, although path dependencies, of existing and traditional concepts, in the mindsets of operators as well as regulators, may account for these findings. 相似文献
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Sumit Lodhia 《Accounting & Finance》2019,59(1):309-329
This paper reviews the pitching template proposed by Faff ( 2015 ). The article highlights the usefulness of this template for researchers. It is observed that there is scope for adapting this tool, with a template suitable for qualitative researchers being proposed. In the light of the various methodological differences through different research paradigms, it is envisaged that this adaptation will assist in bridging the schism between qualitative and quantitative research. It is also hoped that the proposed enhanced template will encourage qualitative researchers to submit to mainstream accounting journals and quantitative researchers to comprehend the value of qualitative research. 相似文献
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A bonus received by an agent from an insurer when the insured does not make a claim is called a “no claim bonus” (NCB). An NCB rewards the agent's risk‐management (RM) effort that reduces the probability that the insured suffers a loss. This paper designs an incentive compatible contract that induces the agent to choose an RM effort. If the agent's RM effort cost is lower than a threshold, feasible ranges of NCB and premium values exist such that the insurer can offer an incentive compatible agency contract with an NCB that is acceptable to the agent. 相似文献
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Research summary : We examine firms' technological investments during an industry's incubation stage—the period between a technological breakthrough and the first instance of its commercialization. Using the agricultural biotechnology context, we develop stylized findings regarding the understudied knowledge evolution preceding product evolution in an industry's life cycle, the trend and diversity of firms undertaking technological investments in anticipation of industry emergence, their leverage of markets for technology and corporate control, and their use of alternative modes of value capture. We juxtapose these stylized findings with existing literature to identify new theoretical insights, and set the stage for future scholarly work to develop and test new theories for the incubation period, examine its existence in other industries, and study its impact on subsequent firm and industry evolution. M anagerial summary : New technological breakthroughs present managers of existing firms and aspiring entrepreneurs with opportunities to create altogether new industries. During the vibrant incubation period, we find that multiple firms capitalize on diverse knowledge bases to shape the industry's knowledge evolution and also capture economic value in diverse ways. Existing firms in the obsolescing industry are more likely to become targets in acquisitions given their complementary knowledge. Science‐based start‐ups are more likely to engage in acquisitions and collaborations with established firms. Diversifying firms are more likely to commercialize products after leveraging of internal development, acquisitions, and alliances. Our study highlights the importance for managers to think about “success” and “failure” across multiple yardsticks of performance, rather than only as product commercialization as the sole goal. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
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A firm's choice between sole and joint ventures in a foreign market is subject to various market-specific and firm-specific influences. This study draws upon the transaction cost and bargaining power theoretical frameworks to identify and measure some of these influences. A logistic regression model was employed to examine the relative influences of the main and interaction effects of the independent factors on ownership structures employed for new foreign subsidiaries by U.S. firms in the 1980s. 相似文献