題組內容
■Consider a time series
. Its long-run variance is __(15)__ and the first-order autocorrelation function is__ (16)__ Consider another process
The range of Φ that ensures the stationarity of this process is __(17)__.
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■Consider a time series. Its long-run variance is __(15)__ and the first-order autocorrelation function is__ (16)__ Consider another process The range of Φ that ensures the stationarity of this process is __(17)__.