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161.
Lévy driven term structure models have become an important subject in the mathematical finance literature. This paper provides
a comprehensive analysis of the Lévy driven Heath–Jarrow–Morton type term structure equation. This includes a full proof of
existence and uniqueness in particular, which seems to have been lacking in the finance literature so far.
相似文献
162.
Semyon Malamud 《Finance and Stochastics》2008,12(3):411-422
We establish universal bounds for asset prices in heterogeneous complete market economies with scale invariant preferences.
Namely, for each agent in the economy we consider an artificial homogeneous economy populated solely by this agent, and calculate
the “homogeneous” price of an asset in each of these economies. Dumas (Rev. Financ. Stud. 2, 157–188, [1989]) conjectured that the risk free rate in a heterogeneous economy must lie in the interval determined by the minimal and maximal
of the “homogeneous” risk free rates. We show that the answer depends on the risk aversions of the agents in the economy:
the upper bound holds when all risk aversions are smaller than one, and the lower bound holds when all risk aversions are
larger than one. The bounds almost never hold simultaneously. Furthermore, we prove these bounds for arbitrary assets.
相似文献
163.
Measuring the unmeasurable: an application of uncertainty quantification to Treasury bond portfolios
We extract from the yield curve a new measure of fundamental economic uncertainty, based on McDiarmid’s diameter and related methods for optimal uncertainty quantification (OUQ). OUQ seeks analytical bounds on a system’s behaviour, even where aspects of the underlying data-generating process and system response function are not completely known. We use OUQ to stress test a simple fixed-income portfolio, certifying its safety—i.e. that potential losses will be ‘small’ in an appropriate sense. The results give explicit tradeoffs between: scenario count, maximum loss, test horizon, and confidence level. Unfortunately, uncertainty peaks in late 2008, weakening certification assurances just when they are needed most. 相似文献
164.
Japan has suffered from sluggish economic growth and recession since the early 1990s. In this paper, we analyze the causes of the prolonged slowdown of the Japanese economy (the lost decade). Economics Nobel laureate Paul Krugman has argued that Japan's lost decade is an example of a liquidity trap. However, our empirical analysis shows that stagnation of the Japanese economy comes from its vertical IS curve rather than a horizontal LM curve, so the Japanese economy has been facing structural problems rather than a temporary downturn. The vertical IS curve is caused by an insensitivity of investment to a lower interest rate partly because of the decline of sales due to the aging population and firms not wanting to invest. The structural problems come from the aging demographic, which is often neglected by scholars and policy‐makers, and also from the allocation of transfers from the central government to local governments, and the unwillingness of Japanese banks to lend money to startup businesses and small and medium enterprises (SMEs), mainly because of Basel capital requirements. Many countries, like China, are expected to face similar issues, particularly given the aging population. The present paper will address why the Japanese economy has been trapped in a prolonged slowdown and provide some remedies for revitalizing the economy. 相似文献
165.
TROY DAVIG 《Journal of Money, Credit and Banking》2016,48(1):233-246
Empirical evidence suggests the Phillips curve has flattened over the past few decades. To capture this feature of the data, I develop a framework where firms face a changing cost of price adjustment, which produces a Phillips curve with a slope coefficient that varies over time. To evaluate the implications for monetary policy, I construct the utility‐based welfare criterion where the relative weight on output gap deviations changes synchronously with the slope of the Phillips curve. The systematic component of the rule that implements optimal policy is constant under discretion and commitment. 相似文献
166.
The current study exhibits a new implication of the Yule–Simpson paradox with public policy repercussions. We construct Laffer curves of local property tax collection based on aggregated data and group division to residential land uses in Jerusalem. Results indicate that based on aggregated (dis-aggregated) data, the location of owner-occupiers and renters who pay a relatively high rate tariff will be on the upward-sloping (downward-sloping) part of the Laffer curve. Consequently, statistical test outcomes support Laffer’s controversial claim that for the few upper-brackets taxpayers, an efficient collection is associated with tax reduction rather than tax increase. 相似文献
167.
中国菲利普斯曲线的理论分析和实证研究 总被引:6,自引:0,他引:6
菲利普斯曲线是分析失业与通货膨胀变动关系的一个强有力工具 ,并可以勾勒出经济运行态势。但是 ,由于经济活动影响因素的复杂性及其组合在各国之间的差异 ,特别是我国的特殊国情及正处于经济转轨这一特殊的发展时期 ,传统的菲利普斯曲线及其理论无法直接拟合我国菲利普斯曲线 相似文献
168.
从专利文献数据出发,以Logistic曲线模型为研究方法,实证分析图像处理领域的整体技术发展及分支技术生命周期进程。研究发现,图像分割、图像识别技术方向及生物识别应用领域处于成长期,图像增强、图像去噪、图像重建、图像融合技术方向处于技术成熟期,而图像复原、图像编码技术及通信、医疗、交通、工业及遥感应用领域已经进入技术饱和期。结合图像处理领域分支技术方向及技术生命周期进展,可为相关创新主体介入领域的方向及时机提供参考信息。 相似文献
169.
商业银行资金转移定价系统:转移方法、定价模式与实施建议 总被引:1,自引:0,他引:1
资金转移定价系统是商业银行进行利率风险管理、产品定价、资源配置、利润核算、绩效评价、优化决策和提高运营效率的重要工具.实施资金转移定价对商业银行经营管理水平的提高以及竞争力的提升具有很大的促进作用,对提高商业银行产品利率敏感性、完善货币政策传导机制具有不可忽视的影响.本文介绍了资金转移定价的模式和方法,比较了各自的优劣,并结合我国商业银行目前面临的内外部环境特征,指出我国商业银行实行资金转移定价必须注意的几个问题. 相似文献
170.
RICARDO NUNES 《Journal of Money, Credit and Banking》2010,42(6):1161-1172
This paper estimates the Phillips curve allowing for a simultaneous role of rational and survey expectations. We consider both a reduced form and a structural specification of the Phillips curve. The results suggest that survey expectations can be a statistically significant component of firms' expectations and inflation dynamics. However, rational expectations continue to play a dominant role. 相似文献