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61.
Portfolio value‐at‐risk (PVAR) is widely used in practice, but recent criticisms have focused on risks arising from biased PVAR estimates due to model specification errors and other problems. The PVAR estimation method proposed in this article combines generalized Pareto distribution tails with the empirical density function to model the marginal distributions for each asset in the portfolio, and a copula model is used to form a joint distribution from the fitted marginals. The copula–mixed distribution (CMX) approach converges in probability to the true marginal return distribution but is based on weaker assumptions that may be appropriate for the returns data found in practice. CMX is used to estimate the joint distribution of log returns for the Taiwan Stock Exchange (TSE) index and the associated futures contracts on SGX and TAIFEX. The PVAR estimates for various hedge portfolios are computed from the fitted CMX model, and backtesting diagnostics indicate that CMX outperforms the alternative PVAR estimators. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:997–1018, 2006 相似文献
62.
2005年的中国电视节目(包括电视剧)市场已经渐入“整合营销时代”的佳境,电视节目的制作者、投资者不再单纯追求资金回报,而是更加关注电视节目与商业品牌以节目及相关活动为平台,通过整合营销传播手段实现品牌回报、产生复合效益。 相似文献
63.
This study examines effects of four combinations of accounting bases and service levels — GAAP and income tax bases, and audit and review service levels — on loan officers' decisions, both separately and in interaction. It examines effects on loan decisions and perceptions of interest rates, default risk, confidence, and usefulness. The interaction of accounting basis and service level significantly affects perceived confidence but does not affect other decisions. Accounting basis and service level separately affect interest rates, default risk, and report usefulness, but do not affect the loan decision. 相似文献
65.
We examine developing countries which have institutional quality ratings for the effects of exchange rate rigidity on inflation.
The level of institutional development exerts no effect on the impact of currency regimes. However, the interaction of institutional
quality and exchange rates has, in the most plausible specifications, a negative impact on inflation. This suggests that fixed
exchange rates exert at most a contingent effect on inflation, and indicates that countries in Eastern Europe and Latin America contemplating currency pegs would be
better off improving institutional quality prior to adopting the euro or dollar and expecting a large subsequent disinflationary
effect.
JEL no. F31, O11 相似文献
66.
The Median Voter Theory is an important theory in the neo-political economics. It can be applied to solve the collective choice
paradox and analyze the policy making for the citizenization of peasant workers. Adopting the method of factor analysis, this
paper makes an empirical study on peasant workers’ preference for citizenization. We find that there is a paradox of future
residence preference and self-identification in peasant workers. On this basis, peasant workers are divided into 5 subgroups,
and it is found that the median undecided peasant workers are the median voters. Based on the analysis of the median undecided
peasant worker’s complaints and appeals, it is proposed that the country should strengthen the vocational training system,
establish a social security system, expand the agricultural reform and promote educational reform to facilitate the citizenization
of peasant workers.
__________
Translated from Guanli Shijie 맜理世界 (Management World), 2007, (4): 40–67 相似文献
67.
由于经济、科技发展水平不同,我国各地区在研发能力上存在较大的差异.为了对我国区域研发能力差异进行定量化分析,本文引入了研发投入强度、研发经费相对规模、研发人员相对规模、主要检索工具收录论文相对数量、授权专利相对数量、技术市场相对规模、新产品产值相对规模等指标,根据(2006年中国科技统计年鉴>提供的数据,通过因子分析,对我国各省区研发能力差异进行比较评价. 相似文献
68.
随着科技的进步、社会的发展,当前中国企业发展的关键是要进行精细管理,它已经是中国企业发展的必然前提。由于市场竞争的加剧,中国企业正逐渐从粗放型管理向精细管理转变。这是中国企业发展的一大进步。只有搞好精细管理,才能促使企业内部改革的进一步深化,保证企业更快更好的向前发展。 相似文献
69.
Interest rate corridors and reserves 总被引:1,自引:0,他引:1
William Whitesell 《Journal of Monetary Economics》2006,53(6):1177-1195
This paper evaluates reserves regimes versus interest rate corridors, which have become competing frameworks for monetary policy implementation. Rate corridors, relying on lending and deposit facilities to create ceilings and floors for overnight interest rates, evince mixed results on controlling volatility. Reserve requirements allow period-average smoothing of interest rates but, even if remunerated, are subject to reserve avoidance activities. A system of voluntary, period-average reserve commitments could offer equivalent rate-smoothing advantages. If central banks created symmetric opportunity costs of meeting or falling short of period-average reserve requirements (or commitments), they could achieve flat reserve demand on settlement day. 相似文献
70.