Nevertheless, reliance on VAR can result in serious problems when improperly used, and would-be users of VAR are advised to consider the following three pieces of advice:
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First, VAR is a tool for firms engaged in total value risk management. Companies concerned not with the value of a stock of assets and liabilities over a specific time horizon, but rather with the volatility of a flow of funds, are often better off eschewing VAR altogether in favor of a measure of cash flow volatility.
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Second, VAR should be applied very carefully to companies that practice \"selective\" risk management those firms that choose to take certain risks as a part of their primary business. When VAR is reported in such situations without estimates of corresponding expected profits, the information conveyed by the VAR estimate can be extremely misleading.
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Third, as a number of recent derivatives disasters are used to illustrate, no form of risk measurement including VAR–is a substitute for good management. Risk management as a process encompasses much more than just risk measurement. Indeed, risk measurement (whether using VAR or some of the alternatives proposed in this article) is pointless without a well-developed organizational infrastructure and IT system capable of supporting the complex and dynamic process of risk taking and risk control.
14.This article presents an approach for evaluating the liabilities of traditional Brazilian annuity plans, using a continuous-time stochastic approach based on modern solvency principles. The technical provisions are obtained by means of conditional expectation, under a real-world measure and considering the peculiar characteristics of each plan and the financial guarantees and profit participations (bonus and dividend plans) embedded in the annuity plans. We assume that policyholder behavior is not optimal, but we also illustrate a calculation of provision assuming optimal policyholder behavior to show the differences between both assumptions. In this article all explicit provisions formulas are derived, and several relevant conclusions about the values of these provisions are discussed. 相似文献15.Shadow banking is the process by which banks raise funds from and transfer risks to entities outside the traditional commercial banking system. Many observers blamed the sudden expansion in 2007 of U.S. sub‐prime mortgage market disruptions into a global financial crisis on a “liquidity run” that originated in the shadow banking system and spread to commercial banks. In response, national and international regulators have called for tighter and new regulations on shadow banking products and participants. Preferring the term “market‐based finance” to the term “shadow banking,” the authors explore the primary financial instruments and participants that comprise the shadow banking system. The authors review the 2007–2009 period and explain how runs on shadow banks resulted in a liquidity crisis that spilled over to commercial banks, but also emphasize that the economic purpose of shadow banking is to enable commercial banks to raise funds from and transfer risks to non‐bank institutions. In that sense, the shadow banking system is a shock absorber for risks that arise within the commercial banking system and are transferred to a more diverse pool of non‐bank capital instead of remaining concentrated among commercial banks. The article also reviews post‐crisis regulatory initiatives aimed at shadow banking and concludes that most such regulations could result in a less stable financial system to the extent that higher regulatory costs on shadow banks like insurance companies and asset managers could discourage them from participating in shadow banking. And the net effect of this regulation, by limiting the amount of market‐based capital available for non‐bank risk transfer, may well be to increase the concentrations of risk in the banking and overall financial system. 相似文献16.Cardoso Matilde Neves Pedro Cunha Afonso Oscar Sochirca Elena 《Review of World Economics》2021,157(1):149-179Review of World Economics - Offshoring, either as FDI or offshore outsourcing, is a phenomenon of increasing importance that has been widely studied in the economics literature. Studies analysing... 相似文献17.Leandro Angotti Guissoni Jonny Mateus Rodrigues Felipe Zambaldi Marcos Fava Neves 《Journal of Marketing Channels》2020,26(2):108-119AbstractPrevious studies have found a convex relation between weighted measures of distribution and market share for consumer products in developed economies, while companies in emerging markets often use a non-weighted (numeric) distribution measure to manage their channel strategy. In contrast to the markets with high retail concentration, the numeric distribution could be best suited to a more fragmented retail market in which the percentage of physical distribution is important. We investigate the effects of expanding numeric versus expanding weighted distribution by studying stores in channels and regions characterized by structural differences in an emerging market. Our data come from retail audits in Brazil and include 91 soft drink manufacturers, 195 brands and 1,110 stock-keeping units. Our study highlights the importance of numeric distribution as a performance measure in this market. Additionally, we show that the effects of numeric and weighted distribution on market share vary by region and channel format. 相似文献18.This study investigates whether employees attribute different motives to their organization's corporate social responsibility (CSR) efforts and if these motives influence employee performance. Specifically, we investigate whether employees could distinguish between intrinsic and extrinsic CSR motives by surveying 229 employee–supervisor dyads from various industries (companies that have reputable CSR programs in Portugal), and the impact of these perceptions on in‐role and extra‐role performance of subordinates. We found that employee task performance increases when employees attribute both intrinsic and extrinsic motives for CSR. Moreover, when employees perceive that their organization invests in a CSR practice that is both intrinsic and extrinsic, they also tend to exert extra effort in their work. Theoretical and practical implications are also discussed alongside future research directions. 相似文献19.Vítor Neves 《Review of Political Economy》2016,28(4):488-503In the early 1970s Wilfred Beckerman and K. William Kapp engaged in a serious dispute. Although it focused on social costs, the dispute raised issues about the very foundations of economics. The differences in approach to social costs that this dispute exposed were so deep-rooted as to preclude (or at least hinder) any possibility of constructive dialogue. This article argues that the subsequent ‘conspiracy of silence’ against Kapp should be understood in terms of Kapp’s very different conception of economics as a social science. This issue is relevant to a broader discussion about the boundaries of pluralism in economics—how these boundaries are drawn and the conditions for a constructive dialogue among economists and with other social scientists. 相似文献20.Change management, and particularly the human side of change, is a central tenet of the strategy of contemporary organizations. However, there is little evidence concerning how strategic HR practices influence how individuals anticipate and react to the implementation of a major change and how direct supervisors influence that process. With a sample of 191 employees from multiple organizations, who completed two surveys with a four‐week lag, we examined the role of commitment‐based HR practices on employees’ intentions to resist future change. We found that commitment‐based HR practices contribute to a decrease in intentions to resist future change, measured four weeks later, via increased affective commitment to change. Moreover, we found that this relationship is conditional on ethical leadership, in that it is significant when ethical leadership is high but not when it is low. Building on social exchange and uncertainty reduction theories, our findings contribute to the literature by examining how and under what boundary conditions HR practices are an effective means for organizations to anticipate and manage change. 相似文献 - ▪