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Modeling exchange rate return volatility of RMB/USD using GARCH family models

机译:使用GARCH族模型建模人民币/美元的汇率收益波动率

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摘要

The paper examines volatility of RMB exchange rate return of onshore and offshore markets. The onshore rate covered 4/01/ 2008-5/09/2016 while offshore spanned 31/12/2008-22/09/2016, the returns were not normally distributed and were integrated of order zero l(0). The Ljung-Box Q statistics depicts the presence of autocorrelation in return series and Ljung-Box Q2 statistics of power transformed for conditional heteroscedasticity for lags of 6, 12 and 20 all indicated the presence of conditional heterosce-dascity. The exchange rates volatility was persistent in both markets. However, offshore return was more persistent while leverage effects exist in both markets. Asymmetry power Autoregressive conditional Heteroscedastic (APARCH) model was the best model for forecasting purposes in both markets while Glosten, Jogannathan and Rankle, Generalized Autoregressive conditional Heteroscedastic (GJR-GARCH) model and Integrated Generalized Autoregressive conditional Heteroscedastic (l-GARCH) were the worst models in onshore and offshore return markets respectively. APARCH model should be adopted for future studies.
机译:本文考察了在岸和离岸市场人民币汇率收益的波动性。陆上汇率涵盖了2008年4月1日至2016年5月9日,而离岸汇率涵盖了2008年12月31日至2016年9月22日,收益率不是正态分布的,并且被整合为零阶l(0)。 Ljung-Box Q统计量描述了返回序列中的自相关的存在,而Ljung-Box Q2统计了针对条件异方差对6、12和20的滞后进行转换的功率的统计,均表明存在条件异方差。两个市场的汇率波动都持续存在。但是,当两个市场都存在杠杆效应时,离岸收益率会更持久。不对称幂自回归条件异方差(APARCH)模型是两个市场中用于预测目的的最佳模型,而Glosten,Jogannathan和Rankle,广义自回归条件异方差(GJR-GARCH)模型和综合广义自回归条件异方差(l-GARCH)是最差的分别在陆上和离岸收益市场中建立模型。未来的研究应采用APARCH模型。

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