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91.
Term Structure Dynamics in Theory and Reality 总被引:7,自引:0,他引:7
This article is a critical survey of models designed for pricingfixed-income securities and their associated term structuresof market yields. Our primary focus is on the interplay betweenthe theoretical specification of dynamic term structure modelsand their empirical fit to historical changes in the shapesof yield curves. We begin by overviewing the dynamic term structuremodels that have been fit to treasury or swap yield curves andin which the risk factors follow diffusions, jump-diffusion,or have "switching regimes." Then the goodness-of-fit of thesemodels is assessed relative to their abilities to (i) matchlinear projections of changes in yields onto the slope of theyield curve; (ii) match the persistence of conditional volatilities,and the shapes of term structures of unconditional volatilities,of yields; and (iii) to reliably price caps, swaptions, andother fixed-income derivatives. For the case of defaultablesecurities we explore the relative fits to historical yieldspreads. 相似文献
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93.
发展优势产业集群提升综合竞争能力——促进长白山地区绿色食品产业升级的探讨 总被引:1,自引:0,他引:1
长白山具有得天独厚的资源优势。长白山地区食品工业已初具规模,但还存在总体规模偏小、市场集中度偏低、企业规模偏小等问题。产业集群是提高长白山绿色食品产业竞争力的重要途径,长白山地区应采取积极的对策发展绿色食品产业集群。 相似文献
94.
How Environmental Management Competitive Pressure Affects a Focal Firm's Environmental Innovation Activities: A Green Supply Chain Perspective
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Recently, environmental management offers firms a source of competitive advantage in the marketplace. The development of environmental innovations is critical to the success of today's firms. Drawing on the Schumpeterian perspective of competition, this research examines how the perception of rival firms' green success influences a firm to pursue and produce environmental innovation through its green supply chain integration activities. Using survey data from 230 firms, a conceptual model is developed and tested using structural equation modeling. We find that the firms in our sample do perceive pressure from their competitors' success in environmental management activities, and thus take supply chain action to pursue integration activities. By differentiating incremental and radical environmental innovation, this study also reveals the role of three dimensions of green supply chain integration (internal, supplier, and customer integration of green product development) on incremental and radical environmental innovation separately. Specifically, findings suggest that green supply chain integration has a positive impact on developing incremental environmental innovation, while only customer integration has a significant positive impact on developing radical environmental innovation. 相似文献
95.
Assuming the absence of market frictions, deterministic interest rates, and certainty in dividend payouts from the stocks in the index basket, an arbitrageur can lock in the profit of a positive (negative) arbitrage basis in a stock index futures by adopting a short (long) futures strategy. In addition, the arbitrageur may improve the arbitrage profit by adopting the so‐called early unwinding strategy of liquidating the position before maturity, or more aggressively from the long position directly to the short position or vice versa. In this study, we examine the optimal arbitrage strategies in stock index futures with position limits and transaction costs. In our analysis, the index arbitrage basis is assumed to follow the Brownian Bridge process. The model formulation of the option value functions leads to a coupled system of variational inequalities. We determine the values of the arbitrage opportunities and the optimal threshold values of the arbitrage basis at which the arbitrageur should optimally close an existing position or open a new index arbitrage position. In particular, we examine the impact of transaction costs on the index arbitrage strategies. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark 31:394–406, 2011 相似文献
96.
本文拟从实践调查与研究的角度分析探索中职学生就业能力培养的理论主张和可行性建议,并以此基础构建基于职业岗位能力的中职学生就业能力理论模型及柱状图测评分析体系,形成较为可行的中职学生就业能力培养模式。 相似文献
97.
戴友锋 《福建金融管理干部学院学报》2001,(3):51-54
处于国民党政府统治的不同时期,法币和金圆券两次币制改革呈现不同的特点.导致了不同的历史后果法币改革具有进步的一面;而金圆券改革则完全呈历史的倒退,阻碍社会生产力的发展. 相似文献
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99.
简要阐述了城市中央商务区(CBD)相关概念及国内外发展概况,在国内CBD高速发展的趋势下提出了CBD生态评价系统的重要意义,根据系统指标学原理建立了中央商务区生态综合指标体系,初步形成了对已建CBD生态程度评价和进一步研究的前提及理论基础. 相似文献
100.
论述了我国流通产业的两次大变革,第一次是市场化,已初步实现,第二次是现代化,方兴未艾。指出物流现代化是电子商务的基础,本质是一种整合能力。现代物流必将深刻影响经济的运行和组织形态的发展,物流现代化也是传统流通企业走出困境的机遇。 相似文献