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股指期货是以股票指数作为标的的金融衍生产品,其在金融风险管理中具有重要作用,同时自身也面临较大的风险。VaR—GARCH模型能够较好地模拟金融市场时间序列数据,并作出相应的估计值,是当前主流的风险管理方法。本文基于香港恒指期货的比较视角,对我国去年推出的沪深300股指期货交易进行VaR—GARCH模型实证分析,得出VaR—GARCH模型能够较好地管理沪深300股指期货的风险的结论,并建议加强VaR技术的运用和加强跨市监管,更好地管理股指期货的风险。 相似文献
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2007年,以武汉为中心的“武汉8+1城市圈”综合配套改革试验方案获批,武汉城市圈成为“中部崛起”战略的排头兵。要实现建设武汉城市圈“两型社会”的宏伟目标,实现中部地区的真正崛起,金融产业的发展至关重要,而金融产业集聚是实现金融产业发展的重要途径。本文利用因子分析方法测算2001--2010年武汉城市圈的金融产业集聚指数,衡量金融产业集聚程度,并通过对2001--2010年的面板模型分析,研究武汉城市圈的金融产业集聚对经济增长的影响机制。 相似文献
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This paper analyzes an interest rate model with self-exciting jumps, in which a jump in the interest rate model increases the intensity of jumps in the same model. This self-exciting property leads to clustering effects in the interest rate model. We obtain a closed-form expression for the conditional moment-generating function when the model coefficients have affine structures. Based on the Girsanov-type measure transformation for general jump-diffusion processes, we derive the evolution of the interest rate under the equivalent martingale measure and an explicit expression of the zero-coupon bond pricing formula. Furthermore, we give a pricing formula for the European call option written on zero-coupon bonds. Finally, we provide an interpretation for the clustering effects in the interest rate model within a simple framework of general equilibrium. Indeed, we construct an interest rate model, the equilibrium state of which coincides with the interest rate model with clustering effects proposed in this paper. 相似文献
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基于我国30个省市1995~2011年的数据,从全国和区域两个层面就产品内国际分工、区际一体化对中国生产性服务业集聚的影响进行的实证分析显示:相较于区际一体化,产品内国际分工对我国生产性服务业集聚的促进作用较小,而且这一促进作用目前只在东部地区有所显现。这说明现阶段我国整体仍处于全球价值链低端的情况下,生产性服务业集聚发展更大程度上依赖于国内区域市场的整合;产品内国际分工与区际一体化对生产性服务业集聚的影响,在总体上呈现出相互促进和加强的关系。这意味着随着国内区际一体化进程的不断推进和地区间分工合作关系的进一步增强,产品内国际分工对我国各地区生产性服务业集聚发展的促进作用将得到更充分发挥。 相似文献
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《Journal of Accounting and Public Policy》2022,41(5):106960
This study examines whether and how firms adjust their accounting conservatism in response to government support through industrial policies, which reduce firms’ dependence on external financing from the capital market. Based on China’s unique economic programme called ‘Five-Year Plan’ from 1991 to 2015, we observe a decline in accounting conservatism among firms covered by government industrial policies. The decline is more pronounced in covered firms, which face higher ex-ante financial constraints, and in the subsample of firms which receive higher government support. These findings are robust to alternative specifications of accounting conservatism and policy timing. Our evidence implies that government industrial policies can have unintended consequences for corporate financial reporting. 相似文献
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