A Locally Most Mean Powerful Based Score Test for ARCH and GARCH Regression Disturbances
ARCH 与 GARCH 回归扰动的局部最大平均功效得分检验AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接讨论 ARCH/GARCH 条件异方差检验,对应波动率建模相关方法,但未说明金融应用。
ARCH 与 GARCH 回归扰动的局部最大平均功效得分检验AI 解读 ↓
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This paper considers testing for autoregressive conditional heteroskedasticity and generalized autoregressive conditional heteroskedasticity disturbances in the linear regression model. These testing problems are one-sided in nature; a fact ignored by the Lagrange multiplier test. A test that exploits this one-sided aspect is constructed based on the sum of the scores. The size and power properties of two versions of this test under normal and leptokurtic disturbances are investigated via a Monte Carlo experiment. The results indicate that both version s of the new test typically have superior power to two versions of the Lagrange multiplier test and possibly also more accurate asymptotic critical values.
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