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951.
Carsten Sørensen 《Review of Derivatives Research》1998,2(4):261-285
The paper analyzes the equilibrium valuation of stock index derivatives in an economy with stochastic interest rates and with a representative agent having time-additive power utility. The equilibrium short interest rate dynamics and the equilibrium term structure of interest rates are described by an affine one-factor term structure model. In equilibrium the value of the stock index is a non-trivial function of the short interest rate. The paper investigates the consequences of the induced stock index dynamics for the theoretical spreads between index forward prices and index futures prices and the consequences for the valuation of options on stock index futures.The paper was written while the author was a visiting scholar at Department of Finance, Kellogg Graduate School of Management, Northwestern University. I thank for helpful comments and suggestions from Gurdip Bakshi, Avi Bick, Menachem Brenner (the editor), Zhiwu Chen, San-Lin Chung, Mark Fisher, Andreas Höger, Marti Subrahmanyam, two anonymous referees, and participants at the Western Finance Association meeting in San Diego, the European Financial Management Association meeting in Istanbul, the European Finance Association meeting in Vienna, and the Center of Analytical Finance workshop at University of Aarhus. Financial support from the Danish Natural Science and Social Science Reasearch Councils is gratefully acknowledged. 相似文献
952.
ZHAO Lin-hai 《商业研究》2006,(11)
知识型中小企业的技术创新能力是与其获取和开发资源的能力严格相关的,通过对企业在其生命周期内经营的特定资源的种类和数量的分析就可以评价企业的技术创新能力。与此同时,构建基于资源的知识型中小企业技术创新能力评价指标体系和模糊综合评价模型,以便对知识型中小企业技术创新能力进行综合评价。 相似文献
953.
国内价格的汇率传递性——基于VAR模型的实证研究 总被引:1,自引:0,他引:1
本文利用VAR模型研究了我国国内价格的汇率传递性。VAR模型的脉冲反应函数显示,存在人民币汇率对国内价格的不完全传递性,但是,传递弹性极低,进口价格指数的汇率传递弹性要强于消费价格指数的汇率传递弹性,且进口价格指数向消费价格指数传导逐渐衰减。因此,通过汇率升值来抑制通胀效果并不理想,从紧的货币政策才是医治通胀的良药。 相似文献
954.
国家支持的中部地区老工业基地的界定与选择 总被引:2,自引:0,他引:2
本文提出了国家政策支持的中部地区老工业基地的界定原则、必要条件、选择标准和量化指标,并对中部31个老工业基地城市进行了综合排序,最后对国家政策支持的中部地区老工业基地的振兴提出了分批压茬进行等政策措施。 相似文献
955.
Ines Wilms Jeroen Rombouts Christophe Croux 《International Journal of Forecasting》2021,37(2):484-499
Volatility forecasts aim to measure future risk and they are key inputs for financial analysis. In this study, we forecast the realized variance as an observable measure of volatility for several major international stock market indices and accounted for the different predictive information present in jump, continuous, and option-implied variance components. We allowed for volatility spillovers in different stock markets by using a multivariate modeling approach. We used heterogeneous autoregressive (HAR)-type models to obtain the forecasts. Based an out-of-sample forecast study, we show that: (i) including option-implied variances in the HAR model substantially improves the forecast accuracy, (ii) lasso-based lag selection methods do not outperform the parsimonious day-week-month lag structure of the HAR model, and (iii) cross-market spillover effects embedded in the multivariate HAR model have long-term forecasting power. 相似文献
956.
我国股票市场走势对GDP影响的实证研究——基于传导机制的研究视角 总被引:1,自引:0,他引:1
从理论上讲,股票市场走势通过传导机制对GDP产生影响,从而产生联动效应。现实中,我国股票市场自上世纪90年代成立以来,其对GDP产生的影响与理论描述却并不吻合。本文基于传导机制的研究视角,采用实证研究方法就我国股票市场走势对GDP(1992~2007年)的影响进行分析,从一个全新的研究视角揭示两者产生异动的原因。 相似文献
957.
958.
北京先行经济指数研究 总被引:2,自引:0,他引:2
丁文斌 《山西财经大学学报》2004,26(4):38-44
"北京先行经济指数"是我国第一个区域性先行经济指数,在试运行中取得了很好的效果。该指数以我国现行统计制度为基础,紧密结合北京实际,通过构造基准循环、"提取"先行指标、编制指数、返回检验等步骤,对北京先行经济指数的科学性和有效性进行了分析。先行指数超前GDP增速变化4~8个月这一重要研究结论在返回检验中得到了很好的证实。 相似文献
959.
Stock externalities and ecological interaction have similar equilibrium effects. The influence on the dynamics of an ecosystem, however, is quite different. The different effects are laid out theoretically in the context of a forest-air model. We compare a centralized, welfare-maximizing policy and decentralized policies. Finally, we numerically simulate the dynamic differences between stock externalities and ecological interaction. 相似文献
960.
Given the background of the increasing opportunity cost of farming and the popularization of labour-saving technology, increased fragmentation has gradually become a key factor in the devaluation and abandonment of land assets. To systematically identify the costs of fragmentation, we use a series of indicators such as the number of plots, the Simpson index, the plot-homestead distance and the total minimum commuting time from the homestead to all plots to measure the extent of fragmentation. A translogcost function is developed and estimated using survey data from three periods, 2011, 2014 and 2017; the data include an effective sample of 1064 household-year observations involving 6599 plot-year observations in Chongqing, China. The extent of fragmentation in the mountains of southwest China is quite serious compared with that in other countries and regions. The Simpson index is 0.63, and on average, 6.06 mu (1 mu = 666.67 m2 or 1 mu = 1/15 ha) of cultivated land is distributed in 6.16 plots, while the total minimum commuting time from the homestead to all plots is approximately 45 min. An increase of one standard deviation in the number of plots, the Simpson index or total minimum commuting time would lead to cost increases of 7.1 %, 15.1 % and 12.2 %, respectively, if other conditions remain unchanged. The channel for the above result involves the changes in the cost share of inputs caused by fragmentation, which increase the labour cost share and reduce the machinery cost share. There is an inverted U-shaped relationship between farm scale and production cost with an inflection point at 47 mu; that is, costs begin to decrease when the scale exceeds 47 mu. However, the average farm scale is currently only 6.06 mu. In addition, production costs can be significantly reduced by renting-in land and implementing land consolidation. To reduce land system-induced costs in mountainous areas, the government should rationally consolidate land to achieve moderate-scale management, reduce the transaction costs of land transfers and popularize machinery suitable for complex terrain. 相似文献