Revisions of Trend-Cycle Estimators of Moving Average Seasonal Adjustment Methods
移动平均季节调整方法中趋势—周期估计量的修订
One of the main purposes of the seasonal adjustment of economic time series is to provide information on current economic conditions, particularly to determine the state of the cycle at which the economy stands. Since seasonal adjustment means removing seasonal variations, thus leaving a seasonally adjusted series consisting of trend cycle together with the irregular fluctuations, it is often very difficult to detect cyclical turning points for series strongly contaminated…