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This paper considers the relationship between daily deviations from uncovered interest rate parity and US and German central bank intervention. The study uses daily overnight Eurocurrency deposit rates with a maturity time of 1 day, which exactly matches the sampling interval of the data. The intervention data are the official net daily purchases and sales of dollars vis-à-vis the German mark by the Federal Reserve System and the Bundesbank. The model uses FIGARCH innovations to represent the degree of long-term dependence in the volatility process. Some support is found for the intervention variables affecting the risk premium as predicted by theory. The impact of intervention in the 2 years immediately following the meltdown of the equity markets in October 1987 and Louvre Accord is particularly strong.  相似文献
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In this article, long-run and short-run relationships among real interest rates in G-7 countries are empirically analyzed. The evidence suggests the existence of long-run relationships among these real interest rates. However, the long-run relationship is not an equality relationship. Short-run relationships are estimated using dynamic simultaneous equation models. They reveal that the real interest rates of non-U.S. G-7 countries react and adjust to long-run disequilibrium conditions. A more detailed analysis based on wavelet transform indicates the existence of both short-run and long-run relationships; however, strict interest rate parity does not seem to hold true.JEL Classification: C22, E43, G15  相似文献
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Tests of the uncovered interest rate parity (UIP) are subject to various data problems when long-term interest rates are applied: due to the long investment period, time intervals for measuring exchange rate movements are usually overlapping and therefore not independent. This shortfall can be prevented by considering short-term investments in long-term bonds instead of investments to maturity. This article analyzes the explanatory power of long-term interest rates with regard to 1- and 3-month exchange rate movements by relating return differences from 1- and 3-month investments in domestic and foreign 10-year government bonds to nine different exchange rates. From a Swiss perspective, there is only weak support for an interrelation between return differences and the corresponding exchange rate movements, whereas from a US perspective, the resulting estimates are much more in line with UIP.The reader may for instance consider Engel (1996) and Froot and Thaler (1990).  相似文献
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The paper examines the purchasing power parity(PPP) theory of the foreign exchange rate of the yenagainst the currencies of the six G7 countries. We usethe error-corrected five-dimensional vectorautoregressive (VAR) model with structural changes inthe trend function. The data cover the period of thepost-Breton–Woods floating exchange rate system. Theresults reveal that the PPP relation alone determinesthe exchange rates for the USA, France, Germany, andItaly, while a linear combination of PPP and uncoveredinterest rate parity (UIP) relations determines that for Canada. Ina model without trend breaks, the PPP relations holdonly for Germany, which indicates that a correctspecification of the sampling distribution of data isimportant. The one-step prediction based on the errorcorrection model (ECM) outperforms the random walkmodel. The ECM is useful to predict the out-of-samplebehaviors of the exchange rates.  相似文献
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对于人民币远期汇率是否满足利率平价,目前国内理论界与实务界还存在一定的分歧。本文任意选取2009年6月1~30日中国银行间外汇市场美元/人民币汇率连续实时的买卖报价等数据,首次对该市场的套利机会进行了测度。研究发现:(1)从抵补套利角度看,国内银行间中短期限(1年以内)的远期汇率定价符合利率平价理论;但因定价基准利率(SHIBOR)未能充分发挥基础利率的功能,致使1年期左右的人民币远期汇率存在潜在抵补套利机会,然而其收益率很低。(2)银行间外汇市场几乎随时都存在收益率可观的单边套利机会。(3)银行有足够的时间进行套利交易。  相似文献
6.
丁剑平 《上海金融》2008,83(4):69-73
本研究综述2000年以来的对汇率与股价关系研究的代表性文章,认为即便两者之间存在"不规则"性,但还是可以从"不规则"中寻找出相对规律。这就需要模型设定约束条件。不仅要考虑经济体(或国家)和地区的对外经济的开放度和金融市场的成熟度,而且还考虑汇率波动(风险贴水)与股市涨跌(引起货币需求变化)各自为对方扮演的角色(时间段上)。由于两个市场定价的内生性使得现在的理论模型都处于"过渡性"。未来的希望寄托在汇率的货币主义分析法与跨期国际资产定价模型的融合。在实证分析方面如何突破协整以及向量自回归之类的框框有待新的非线性工具的开发。  相似文献
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This paper considers the real interest rate parity (RIRP) in OECD countries applying a sequential panel selection (SPS) method on alternative panel unit-root tests. Our approach exploits the enhanced power of panels to uncover evidence of stationarity, but also identifies the exact countries for which the RIRP holds in a panel. Moreover, we construct real interest rate measures using alternative approaches, including a Markov regime-switching procedure, which is consistent with the forward-looking nature of inflation expectations formation. Considering US as the benchmark economy, we produce strong evidence of stationarity in real interest rate differentials, which resuscitates RIRP, especially given the inconclusive results in the related literature. Our results are robust to different panel unit-root tests, measures of inflation expectations, and interest rate maturities. The RIRP appears quite resilient in the face of the global financial crisis and the low real interest rate environment after the great recession. The SPS allows to calculate half-lives, which avoid the pitfalls of over/underestimating the speed of adjustment and are lower as compared to the typical estimates in the literature.  相似文献
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