NEAR-INTEGRATED RANDOM COEFFICIENT AUTOREGRESSIVE TIME SERIES
近单整随机系数自回归时间序列AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究近单整 RCA(1)、单位根及轻度爆炸过程的渐近行为,属于时间序列。
近单整随机系数自回归时间序列AI 解读 ↓
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We determine the limiting behavior of near-integrated first-order random coefficient autoregressive RCA(1) time series. It is shown that the asymptotics of the finite-dimensional distributions crucially depends on how the critical value 1 is approached, which determines whether the process is near-stationary, has a unit root, or is mildly explosive. %In a second part, we derive the limit distribution of the serial correlation coefficient in the near stationary and the mildly explosive settings under very general conditions on the parameters. The results obtained are in accordance with those available for first-order autoregressive time series and can hence serve as an addition to existing literature in the area.